SafeDispatch/SafeMobileLIB_DLL/PostgresDB.cs

using System;
using System.Collections.Generic;
using System.Text;

using Npgsql;
using System.Data;


namespace SafeMobileLib
{
    class PostgresDB
    {
        private NpgsqlConnection conn;
        
        //list all compatible database versions
        private static string[] _ver = {"1.0"};

        //p_user -> root user
        //p_password -> root password
        public static bool CreateAndInitDB_v1_0(string p_server, string p_user, string p_password, string p_port)
        {
            //load and execute the SQL file
            return false;
        }

        //returns false if the current isntalled DB version is in _ver string
        bool supportedDBversion()
        {
            return false;
        }

        public PostgresDB()
        {            
        }

        ~PostgresDB() 
        {
            CloseConnection();
        }

        public bool InitConnection(string p_server, string p_dbname, string p_user, string p_password, string p_port)
        {
            string connstring = String.Format("Server={0};Port={1};" +
                    "User Id={2};Password={3};Database={4};",
                   p_server, p_port, p_user, p_password, p_dbname);
            // Making connection with Npgsql provider
            conn = new NpgsqlConnection(connstring);
            conn.Open();

            //check to see if the DB versio is supported by DLL
            bool support = supportedDBversion();
            if (!support)
            {
                conn.Close();
                return false;
            }
            return true;

        }

        //to be used by all queries returning a Int32
        private Int32 execSQL_Int32(string p_query)
        {
            NpgsqlCommand cmd = new NpgsqlCommand(p_query);
            NpgsqlDataReader dr = cmd.ExecuteReader();
            if (dr.RecordsAffected != 1)
                throw new Exception("execSQL_Int32: More than 1 row returned by statment");

            dr.Read();
            Int32 result = dr.GetInt32(0);
            dr.Dispose();
            cmd.Dispose();
            return result;           
        }

        //to be used by all queries returning a string
        private string execSQL_string(string p_query)
        {
            return null;
        }

        public Int32 get_subscriber_count()
        {
            return execSQL_Int32("SELECT COUNT(*) from subscriber");
        }

        //insert a position message into DB
        public bool insert_msg_pos(posMessage p_posMsg)
        {
            return false;
        }

        //##############################################################
        //get historical position for a vehicle
        public ArrayList get_history_positions(string p_vehName, int p_start, int p_stop)
        {
            return null;
        }

        public ArrayList get_lastPos(string p_userName)
        {
            return null;
        }

        public ArrayList get_user_vehicles(string p_userName)
        {
            return null;
        }

        public string get_vehicle_imei(string p_vehName)
        {
            return null;
        }
        //#############################################################

        public void InsertXML(string p_message)
        {
            XmlDocument docXML = new XmlDocument();
            docXML.LoadXml(p_message);
            XmlElement leRoot = docXML.DocumentElement;
            XmlAttributeCollection attr = leRoot.Attributes;

            string id = attr["id"].InnerXml;
            switch (id)
            {
                case "100001":
                    insertSchedule(p_message);break;
                case "100111":
                    insertRFID(p_message); break;
            }

        }
       

        private void insertSchedule(string p_message)
        {
            String LAT, LNG;
            Double dlat=0, dlng=0;
            XmlDocument docXML = new XmlDocument();
            try
            {
                docXML.LoadXml(p_message);  
            }
            catch (Exception o)
            {
                Console.WriteLine("Error Read XML");
                throw new ArgumentException(o.Message.ToString());
            }
            XmlElement leRoot = docXML.DocumentElement;
            XmlAttributeCollection attr = leRoot.Attributes;

            LAT = attr["latitude"].InnerXml;
            LNG = attr["longitude"].InnerXml;
            LAT = LAT.Replace(',', '.');
            LNG = LNG.Replace(',', '.');

            try
            {
                dlat = Convert.ToDouble(LAT);
                dlng = Convert.ToDouble(LNG);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Erorr on convert float1");
            }

            if ((dlat > 180) || (dlng > 180))
            {
                LAT = LAT.Replace('.', ',');
                LNG = LNG.Replace('.', ',');
                try
                {
                    dlat = Convert.ToDouble(LAT);
                    dlng = Convert.ToDouble(LNG);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Erorr on convert float2");
                }
            }

            if (MSSQL)
            {
                try
                {
                    Double sc_ev = 0; Int32 sc_id = 0;
                    SqlCeCommand cmd;

                    SqlCeDataReader dr;
                    cmd = new SqlCeCommand("select sc_id from subscriber where imei='" + attr["subscriber"].InnerXml + "'", cn);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        sc_id = dr.GetInt32(0);
                    }
                    dr.Close();

                    sc_ev = sc_id * 10000000000 + Convert.ToInt64(attr["time"].InnerXml);                    
                    //cmd = new SqlCeCommand("INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,scevtime) VALUES (" + sc_id + "," + LAT + "," + LNG + "," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + "," + sc_ev.ToString() + ")", cn);
                    //cmd.ExecuteNonQuery();

                    cmd = new SqlCeCommand();
                    cmd.Connection = cn;
                    cmd.CommandText = "INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,scevtime) VALUES (" + sc_id + ",@lat1,@lng1," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + "," + sc_ev.ToString() + ")";
                    cmd.Parameters.Add("@lat1", SqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("@lng1", SqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();

                    cmd = new SqlCeCommand();
                    cmd.Connection = cn;
                    cmd.CommandText = "update lastpos set lat=@lat1, lng=@lng1, speed=" + attr["speed"].InnerXml + ", di=" + attr["di"].InnerXml + ", do=" + attr["do"].InnerXml + ", timeGMT=" + attr["time"].InnerXml + ", address=''  where imei='" + attr["subscriber"].InnerXml + "' and timeGMT<" + attr["time"].InnerXml;
                    cmd.Parameters.Add("@lat1", SqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("@lng1", SqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();

                    //cmd = new SqlCeCommand("update lastpos set lat=" + LAT + ", lng=" + LNG + ", speed=" + attr["speed"].InnerXml + ", di=" + attr["di"].InnerXml + ", do=" + attr["do"].InnerXml + ", timeGMT=" + attr["time"].InnerXml + "  where imei='" + attr["subscriber"].InnerXml + "' and timeGMT<" + attr["time"].InnerXml, cn);
                    //cmd.ExecuteNonQuery();


                    string query = "call insert_msg_pos('" +
                                    attr["subscriber"].InnerXml + "','" +
                                    attr["latitude"].InnerXml + "','" +
                                    attr["longitude"].InnerXml + "','" +
                                    attr["speed"].InnerXml + "','" +
                                    attr["dgr"].InnerXml + "','" +
                                    attr["di"].InnerXml + "','" +
                                    attr["do"].InnerXml + "','" +
                                    attr["time"].InnerXml + "','0',null);";

                   // Console.WriteLine(query);
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: insertSchedule  " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else 
            {
                try
                {
                    /*MySqlCommand cmd;                    
                    string query = "call insert_msg_pos('" +
                                    attr["subscriber"].InnerXml + "','" +
                                    LAT + "','" +
                                    LNG + "','" +
                                    attr["speed"].InnerXml + "','" +
                                    attr["dgr"].InnerXml + "','" +
                                    attr["di"].InnerXml + "','" +
                                    attr["do"].InnerXml + "','" +
                                    attr["time"].InnerXml + "','0',null);";

                    //Console.WriteLine(query);
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();*/

                    MySqlCommand cmd = new MySqlCommand();
                    cmd.Connection = cnMY;
                    cmd.CommandText = "call insert_msg_pos('" + attr["subscriber"].InnerXml + "',?lat1,?lng1,'" +attr["speed"].InnerXml + "','" +attr["dgr"].InnerXml + "','" +attr["di"].InnerXml + "','" +attr["do"].InnerXml + "','" +attr["time"].InnerXml + "','0',null);";
                    cmd.Parameters.Add("?lat1", MySqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("?lng1", MySqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    //if (o.Number == (int)MySqlErrorCode.DuplicateKeyEntry) Console.WriteLine("Da ma e duplicate KEY1");                                        
                    Console.WriteLine("X"+(Int16)o.Number+"File: SMdb_access.csX Meth: insertSchedule  " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        private void insertRFID(string p_message)
        {
            String LAT, LNG;
            Double dlat = 0, dlng = 0; Int32 sc_id = 0;
            XmlDocument docXML = new XmlDocument();
            try
            {
                docXML.LoadXml(p_message);
            }
            catch (Exception o)
            {
                Console.WriteLine("Error Read XML");
                throw new ArgumentException(o.Message.ToString());
            }
            XmlElement leRoot = docXML.DocumentElement;
            XmlAttributeCollection attr = leRoot.Attributes;

            LAT = attr["latitude"].InnerXml;
            LNG = attr["longitude"].InnerXml;
            LAT = LAT.Replace(',', '.');
            LNG = LNG.Replace(',', '.');

            try
            {
                dlat = Convert.ToDouble(LAT);
                dlng = Convert.ToDouble(LNG);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Erorr on convert float1");
            }

            if ((dlat > 180) || (dlng > 180))
            {
                LAT = LAT.Replace('.', ',');
                LNG = LNG.Replace('.', ',');
                try
                {
                    dlat = Convert.ToDouble(LAT);
                    dlng = Convert.ToDouble(LNG);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Erorr on convert float2");
                }
            }            
            if (MSSQL)
            {
                Double sc_ev = 0;
                SqlCeCommand cmd;
                try
                {                                        
                    SqlCeDataReader dr;
                    cmd = new SqlCeCommand("select sc_id from subscriber where imei='" + attr["subscriber"].InnerXml + "'", cn);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        sc_id = dr.GetInt32(0);
                    }
                    dr.Close();

                    sc_ev = sc_id * 10000000000 + Convert.ToInt64(attr["time"].InnerXml);

                    cmd = new SqlCeCommand("INSERT INTO rfidnew (sc_id,rfid) VALUES (" + sc_id + ",'" + attr["RFID"].InnerXml + "')", cn);
                    cmd.ExecuteNonQuery();

                    cmd = new SqlCeCommand();
                    cmd.Connection = cn;
                    cmd.CommandText = "update lastpos set lat=@lat1, lng=@lng1, speed=" + attr["speed"].InnerXml + ", di=" + attr["di"].InnerXml + ", do=" + attr["do"].InnerXml + ", timeGMT=" + attr["time"].InnerXml + ", address=''  where imei='" + attr["subscriber"].InnerXml + "' and timeGMT<" + attr["time"].InnerXml;
                    cmd.Parameters.Add("@lat1", SqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("@lng1", SqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();

                    cmd = new SqlCeCommand();
                    cmd.Connection = cn;
                    cmd.CommandText = "INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + ",@lat1,@lng1," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "'," + sc_ev.ToString() + ")";
                    cmd.Parameters.Add("@lat1", SqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("@lng1", SqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();

                    //cmd = new SqlCeCommand("update lastpos set lat=" + LAT + ", lng=" + LNG + ", speed=" + attr["speed"].InnerXml + ", di=" + attr["di"].InnerXml + ", do=" + attr["do"].InnerXml + ", timeGMT=" + attr["time"].InnerXml + "  where imei='" + attr["subscriber"].InnerXml + "' and timeGMT<" + attr["time"].InnerXml, cn);
                    //cmd.ExecuteNonQuery();
                    //cmd = new SqlCeCommand("INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + "," + LAT + "," + LNG + "," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "'," + sc_ev.ToString() + ")", cn);                    
                    //cmd.ExecuteNonQuery();
                }
                catch (SqlCeException o)
                {
                    if (o.NativeError == 25016)
                    {
                        Console.WriteLine("Double Messages");
                        Double pas = 0; Boolean outwhile = false;
                        while ((!outwhile) && (pas < 0.099))
                        {
                            try
                            {
                                pas = pas + 0.001;
                                sc_ev = sc_ev + 0.001;
                                cmd = new SqlCeCommand();
                                cmd.Connection = cn;
                                cmd.CommandText = "INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + ",@lat1,@lng1," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "',@sc_ev)";
                                cmd.Parameters.Add("@lat1", SqlDbType.Float).Value = dlat;
                                cmd.Parameters.Add("@lng1", SqlDbType.Float).Value = dlng;
                                cmd.Parameters.Add("@sc_ev", SqlDbType.Float).Value = sc_ev;
                                cmd.Prepare();
                                cmd.ExecuteNonQuery();
                                outwhile = true;
                            }
                            catch (SqlCeException o2)
                            {
                                if (o2.NativeError == 25016) ;
                                else
                                {
                                    Console.WriteLine("File: SMdb_access.cs Meth: insertSchedule  " + o.Message + o.StackTrace);
                                    outwhile = true;
                                    throw new ArgumentException(o.Message.ToString());
                                }
                            }
                        }
                    }
                    else
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: insertSchedule  " + o.Message + o.StackTrace);
                        throw new ArgumentException(o.Message.ToString());
                    }
                }
            }
            else
            {
                String sc_ev ="";
                MySqlCommand cmd;
                try
                {                    
                    MySqlDataReader dr;
                    cmd = new MySqlCommand("select sc_id from subscriber where imei='" + attr["subscriber"].InnerXml + "'", cnMY);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        sc_id = dr.GetInt32(0);
                    }
                    dr.Close();

                    sc_ev = sc_id.ToString() + attr["time"].InnerXml + "00";
                    if (sc_ev.Length == 13) sc_ev = "000" + sc_ev;
                    if (sc_ev.Length == 14) sc_ev = "00" + sc_ev;
                    if (sc_ev.Length == 15) sc_ev = "0" + sc_ev;


                    cmd = new MySqlCommand();
                    cmd.Connection = cnMY;
                    cmd.CommandText = "update lastpos set lat=?lat1, lng=?lng1, speed=" + attr["speed"].InnerXml + ", di=" + attr["di"].InnerXml + ", do=" + attr["do"].InnerXml + ", timeGMT=" + attr["time"].InnerXml + ", address='' where imei='" + attr["subscriber"].InnerXml + "' and timeGMT<" + attr["time"].InnerXml;
                    cmd.Parameters.Add("?lat1", MySqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("?lng1", MySqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();
                    
                    cmd = new MySqlCommand("INSERT INTO rfidnew VALUES (null," + sc_id + ",'" + attr["RFID"].InnerXml + "')", cnMY);
                    cmd.ExecuteNonQuery();

                    cmd = new MySqlCommand();
                    cmd.Connection = cnMY;
                    cmd.CommandText = "INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + ",?lat1,?lng1," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "'," + sc_ev + ")";
                    cmd.Parameters.Add("?lat1", MySqlDbType.Float).Value = dlat;
                    cmd.Parameters.Add("?lng1", MySqlDbType.Float).Value = dlng;
                    cmd.Prepare();
                    cmd.ExecuteNonQuery();

                    //cmd = new MySqlCommand("INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + "," + LAT + "," + LNG + "," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "'," + sc_ev + ")", cnMY);
                    //cmd.ExecuteNonQuery();

                }
                catch (MySqlException o)
                {
                    if (o.Number == (int)MySqlErrorCode.DuplicateKeyEntry)
                    {
                        Console.WriteLine("Double Messages");
                        int pas = 0; String str = ""; Boolean outwhile = false;
                        while ((!outwhile)&&(pas<99))
                        {
                            try
                            {
                                pas++;
                                if (pas < 10) str = "0" + pas.ToString();
                                else str = pas.ToString();
                                sc_ev = sc_ev.Remove(sc_ev.Length - 2);
                                sc_ev = sc_ev + str;

                                cmd = new MySqlCommand();
                                cmd.Connection = cnMY;
                                cmd.CommandText = "INSERT INTO messages (sc_id,lat,lng,speed,di,do,timeGMT,rfid,scevtime) VALUES (" + sc_id + ",?lat1,?lng1," + attr["speed"].InnerXml + "," + attr["di"].InnerXml + "," + attr["do"].InnerXml + "," + attr["time"].InnerXml + ",'" + attr["RFID"].InnerXml + "'," + sc_ev + ")";
                                cmd.Parameters.Add("?lat1", MySqlDbType.Float).Value = dlat;
                                cmd.Parameters.Add("?lng1", MySqlDbType.Float).Value = dlng;
                                cmd.Prepare();
                                cmd.ExecuteNonQuery();

                                outwhile = true;
                            }
                            catch (MySqlException o2)
                            {
                                if (o2.Number == (int)MySqlErrorCode.DuplicateKeyEntry) ;
                                else
                                {
                                    Console.WriteLine("File: SMdb_access.cs Meth: insertSchedule  " + o.Message.ToString());
                                    outwhile = true;
                                    throw new ArgumentException(o.Message.ToString());
                                }
                            }
                        }
                    }
                    else
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: insertSchedule  " + o.Message.ToString());
                        throw new ArgumentException(o.Message.ToString());
                    }
                }
            }
        }

        public ArrayList get_all_IMEI(int gateway_id)
        {
            //"SELECT s.imei from subscriber s, subs_gateway g where s.sc_id=g.sc_id and g.gateway_id=" + gateway_id + " ORDER BY s.imei"

            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new SqlCeCommand("SELECT s.imei from subscriber s, subs_gateway g where s.sc_id=g.sc_id and g.gateway_id=" + gateway_id + " ORDER BY s.imei", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            Tmp = dr.GetString(0);
                            ret.Add(Tmp);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else 
            {
                ArrayList ret = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader dr;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new MySqlCommand("SELECT s.imei from subscriber s, subs_gateway g where s.sc_id=g.sc_id and g.gateway_id=" + gateway_id + " ORDER BY s.imei", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            Tmp = dr.GetString(0);
                            ret.Add(Tmp);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }

        public void updateStatus(string p_IMEI, int status, int di)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                int stat = get_status(p_IMEI);

                if (stat == -1)
                {
                    try
                    {
                        string query = "INSERT INTO mototurbo VALUES('" + p_IMEI + "'," + status + "," + di + ")";
                        Console.WriteLine(query);
                        cmd = new SqlCeCommand(query, cn);
                        cmd.ExecuteNonQuery();

                        query = "INSERT INTO logmototurbo (imei,timeGMT,status) VALUES('" + p_IMEI + "'," + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + status + ")";
                        Console.WriteLine(query);
                        cmd = new SqlCeCommand(query, cn);
                        cmd.ExecuteNonQuery();
                    }
                    catch (Exception o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: INSERT STATUS " + o.Message.ToString());
                        throw new ArgumentException(o.Message.ToString());
                    }
                }
                else if (stat != status)
                {
                    try
                    {
                        string query = "UPDATE mototurbo SET status =" + status + " where imei='" + p_IMEI + "'";
                        Console.WriteLine(query);
                        cmd = new SqlCeCommand(query, cn);
                        cmd.ExecuteNonQuery();

                        query = "INSERT INTO logmototurbo (imei,timeGMT,status) VALUES('" + p_IMEI + "'," + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + status + ")";
                        Console.WriteLine(query);
                        cmd = new SqlCeCommand(query, cn);
                        cmd.ExecuteNonQuery();

                    }
                    catch (Exception o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                    }
                }
            }
            else 
            {
                MySqlCommand cmd;
                int stat = get_status(p_IMEI);

                if (stat == -1)
                {
                    try
                    {
                        string query = "INSERT INTO mototurbo VALUES('" + p_IMEI + "'," + status + "," + di + ")";
                        Console.WriteLine(query);
                        cmd = new MySqlCommand(query, cnMY);
                        cmd.ExecuteNonQuery();

                        query = "INSERT INTO logmototurbo VALUES('" + p_IMEI + "'," + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + status + ",null)";
                        Console.WriteLine(query);
                        cmd = new MySqlCommand(query, cnMY);
                        cmd.ExecuteNonQuery();
                    }
                    catch (MySqlException o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: INSERT STATUS " + o.Message.ToString());
                        throw new ArgumentException(o.Message.ToString());
                    }
                }
                else if (stat != status)
                {
                    try
                    {
                        string query = "UPDATE mototurbo SET status =" + status + " where imei='" + p_IMEI + "'";
                        Console.WriteLine(query);
                        cmd = new MySqlCommand(query, cnMY);
                        cmd.ExecuteNonQuery();

                        query = "INSERT INTO logmototurbo VALUES('" + p_IMEI + "'," + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + status + ",null)";
                        Console.WriteLine(query);
                        cmd = new MySqlCommand(query, cnMY);
                        cmd.ExecuteNonQuery();

                    }
                    catch (MySqlException o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());                       
                    }
                }
            }
        }

        public int get_status(String IMEI)
        {
            if (MSSQL)
            {
                int status = -1;
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                try
                {
                    cmd = new SqlCeCommand("SELECT status from mototurbo where imei='" + IMEI + "'", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            status = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return status;
            }
            else 
            {
                int status = -1;
                MySqlCommand cmd;
                MySqlDataReader dr;
                try
                {
                    cmd = new MySqlCommand("SELECT status from mototurbo where imei='" + IMEI + "'", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            status = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return status;
            }
        }

        public Boolean Check_RFID_Exist(String RFID,Int32 Unique_id)
        {
            Boolean exist = false;
            if (MSSQL)
            {
                int status = -1;
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                try
                {
                    cmd = new SqlCeCommand("SELECT count(*) from passenger where rfid='" + RFID + "' and id<>"+Unique_id, cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            status = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                    if (status > 0) exist = true;
                }
                catch (Exception o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return exist;
            }
            else
            {
                int status = -1;
                MySqlCommand cmd;
                MySqlDataReader dr;
                try
                {
                    cmd = new MySqlCommand("SELECT count(*) from passenger where rfid='" + RFID + "' and id<>"+Unique_id, cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            status = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                    if (status > 0) exist = true;
                }
                catch (MySqlException o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return exist;
            }
        }

        public ArrayList get_sms_todeliver(int gateway_id)
        {
            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                smsmessage obj;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new SqlCeCommand("SELECT s.imei , m.timeGMT, m.idx, m.mess, s.sc_id from sms m, subscriber s, subs_gateway g where m.status=0 and s.sc_id=g.sc_id and g.gateway_id=" + gateway_id + " and s.sc_id=m.sc_id_dest ORDER BY m.timeGMT", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            obj = new smsmessage();
                            obj.imei_dest = dr.GetString(0);
                            obj.timeGMT = (uint)dr.GetInt32(1);
                            obj.idx = dr.GetInt32(2);
                            obj.mess = dr.GetString(3);
                            obj.sc_id_dest = dr.GetInt32(4);
                            obj.status = 0;
                            ret.Add(obj);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else 
            {
                ArrayList ret = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader dr;
                smsmessage obj;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new MySqlCommand("SELECT s.imei , m.timeGMT, m.idx, m.mess, s.sc_id from sms m, subscriber s, subs_gateway g where m.status=0 and s.sc_id=g.sc_id and g.gateway_id=" + gateway_id + " and s.sc_id=m.sc_id_dest ORDER BY m.timeGMT", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            obj = new smsmessage();
                            obj.imei_dest = dr.GetString(0);
                            obj.timeGMT = dr.GetUInt32(1);
                            obj.idx = dr.GetInt32(2);
                            obj.mess = dr.GetString(3);
                            obj.sc_id_dest = dr.GetInt32(4);
                            obj.status = 0;
                            ret.Add(obj);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        //Console.Write("File: SMdb_access.cs Meth: get_IMEI : ");
                        //Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    //Console.WriteLine("File: SMdb_access.cs Meth: get_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }

        public ArrayList get_sms_todeliverIP(String gateway_IP)
        {
            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                smsmessage obj;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new SqlCeCommand("SELECT s.imei , m.timeGMT, m.idx, m.mess, s.sc_id from sms m, subscriber s, subs_gateway g where m.status=0 and s.sc_id=g.sc_id and g.gateway_ip='" + gateway_IP + "' and s.sc_id=m.sc_id_dest ORDER BY m.timeGMT", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            obj = new smsmessage();
                            obj.imei_dest = dr.GetString(0);
                            obj.timeGMT = (uint)dr.GetInt32(1);
                            obj.idx = dr.GetInt32(2);
                            obj.mess = dr.GetString(3);
                            obj.sc_id_dest = dr.GetInt32(4);
                            obj.status = 0;
                            ret.Add(obj);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: get_sms_todeliverIP : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_sms_todeliverIP : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else
            {
                ArrayList ret = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader dr;
                smsmessage obj;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new MySqlCommand("SELECT s.imei , m.timeGMT, m.idx, m.mess, s.sc_id from sms m, subscriber s, subs_gateway g where m.status=0 and s.sc_id=g.sc_id and g.gateway_ip='" + gateway_IP + "' and s.sc_id=m.sc_id_dest ORDER BY m.timeGMT", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            obj = new smsmessage();
                            obj.imei_dest = dr.GetString(0);
                            obj.timeGMT = dr.GetUInt32(1);
                            obj.idx = dr.GetInt32(2);
                            obj.mess = dr.GetString(3);
                            obj.sc_id_dest = dr.GetInt32(4);
                            obj.status = 0;
                            ret.Add(obj);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: get_sms_todeliverIP : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_sms_todeliverIP : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }


        public void update_sms_delivered(int idxmess, int status)
        {
            // status = 1 : GW read the msg and delivered it
            // status = 2 : GW received the confirm from radio unit
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    string query = "UPDATE sms SET status=" + status + " where idx=" + idxmess;
                    Console.WriteLine(query);
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    string query = "UPDATE sms SET status=" + status + " where idx=" + idxmess;
                    Console.WriteLine(query);
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
        }

        public void insert_sms_received(String imei, string mess, int type, string emailaddr)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                Int32 sc_id = 0;
                try
                {
                    cmd = new SqlCeCommand("SELECT sc_id from subscriber where imei='" + imei + "'", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            sc_id = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: insert_sms_received : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: insert_sms_received : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }

                try
                {
                    string query = "INSERT INTO sms (timeGMT,sc_id_sour,sc_id_dest,mess,status,email) VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + sc_id + ",0,'" + mess + "'," + type + ",'')";
                    if (type == 7)
                        query = "INSERT INTO sms (timeGMT,sc_id_sour,sc_id_dest,mess,status,email) VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + ",0," + sc_id + ",'" + mess + "'," + type + ",'" + emailaddr + "')";
                    Console.WriteLine(query);
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
            else 
            {
                MySqlCommand cmd;
                MySqlDataReader dr;
                Int32 sc_id = 0;
                try
                {
                    cmd = new MySqlCommand("SELECT sc_id from subscriber where imei='" + imei + "'", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            sc_id = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: insert_sms_received : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: insert_sms_received : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }

                try
                {
                    string query = "INSERT INTO sms VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + sc_id + ",0,'" + mess + "'," + type + ",null,'')";
                    if (type == 7)
                        query = "INSERT INTO sms VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + ",0," + sc_id + ",'" + mess + "'," + type + ",null,'" + emailaddr + "')";
                    Console.WriteLine(query);
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
        }

        public String ReadTimeLimit(String Code)
        {
            if (MSSQL)
            {
                String Retur = "";
                try
                {
                    SqlCeCommand cmd;
                    SqlCeDataReader dr;
                    cmd = new SqlCeCommand("SELECT wait_name from run_wait where veh_name='" + Code + "'", cn);
                    dr = cmd.ExecuteReader();
                    if (dr.Read())
                    {
                        Retur = dr.GetString(0);
                    }
                    dr.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: ReadTimeLimit " + o.Message.ToString());
                }
                return Retur;
            }
            else
            {
                String Retur = "";
                try
                {
                    MySqlCommand cmd;
                    MySqlDataReader dr;
                    cmd = new MySqlCommand("SELECT wait_name from run_wait where veh_name='" + Code + "'", cnMY);
                    dr = cmd.ExecuteReader();
                    if (dr.Read())
                    {
                        Retur = dr.GetString(0);
                    }
                    dr.Close();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: ReadTimeLimit " + o.Message.ToString());
                }
                return Retur;
            }
        }

        public void InsertTimeLimit(String Code, String Time)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                string query = "";
                try
                {
                    query = "DELETE from run_wait where veh_name='" + Code + "'";
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                    query = "INSERT INTO run_wait VALUES('" + Code + "'," + Time + ")";
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else 
            {
                MySqlCommand cmd;
                string query = "";
                try
                {
                    query = "DELETE from run_wait where veh_name='" + Code + "'";
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();
                    query = "INSERT INTO run_wait VALUES('" + Code + "'," + Time + ")";
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public void insert_sms_sent2email(String imei, String mess, String email)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                Int32 sc_id = 0;
                try
                {
                    cmd = new SqlCeCommand("SELECT sc_id from subscriber where imei='" + imei + "'", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            sc_id = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: insert_sms_sent2email : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: insert_sms_sent2email : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }

                try
                {
                    string query = "INSERT INTO sms (timeGMT,sc_id_sour,sc_id_dest,mess,status,email) VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + sc_id + ",0,'" + mess + "',5,'" + email + "')";
                    Console.WriteLine(query);
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
            else 
            {
                MySqlCommand cmd;
                MySqlDataReader dr;
                Int32 sc_id = 0;
                try
                {
                    cmd = new MySqlCommand("SELECT sc_id from subscriber where imei='" + imei + "'", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            sc_id = dr.GetInt32(0);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: insert_sms_sent2email : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: insert_sms_sent2email : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }

                try
                {
                    string query = "INSERT INTO sms VALUES(" + DateTo70Format(DateTime.Now.ToUniversalTime()) + "," + sc_id + ",0,'" + mess + "',5,null,'" + email + "')";
                    Console.WriteLine(query);
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
        }
        
        public void CloseConnection()
        {
            if (MSSQL)
            {
                if (cn != null)
                    cn.Close();
            }
            else 
            {
                if (cnMY != null)
                    cnMY.Close();
            }
        }

        public void updateDi(string p_IMEI, int di)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    string query = "UPDATE mototurbo SET di =" + di + " where imei='" + p_IMEI + "'";
                    Console.WriteLine(query);
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();

                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    string query = "UPDATE mototurbo SET di =" + di + " where imei='" + p_IMEI + "'";
                    Console.WriteLine(query);
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();

                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: UPDATE STATUS " + o.Message.ToString());
                }
            }
        }

        public Boolean addVehicleToDb(String _imei, String _user, String _name, String _serialNumber, Int32 DI,Boolean motoTRBO)
        {
            String SerialNr = "";
            if (!motoTRBO) SerialNr = _serialNumber;
            if (MSSQL)
            {
                SqlCeCommand cmd=null;
                try
                {
                    cmd = new SqlCeCommand("SELECT count(imei) FROM subscriber where imei='" + _imei + "'", cn);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() == "0")
                    {
                        string id_subscriber = "", id_vehicle = "", id_user = "";

                        cmd = new SqlCeCommand("INSERT INTO vehicle (lp,name,driver_id,time_route) VALUES('" + SerialNr + "' ,'" + _name + "',1,0)", cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("INSERT INTO subscriber (imei) VALUES('" + _imei + "')", cn);
                        cmd.ExecuteNonQuery();

                        //get vehicle id
                        cmd = new SqlCeCommand("SELECT max(id) FROM vehicle ", cn);
                        id_vehicle = cmd.ExecuteScalar().ToString();
                        
                        //get subscriber id
                        cmd = new SqlCeCommand("SELECT max(sc_id) FROM subscriber ", cn);
                        id_subscriber = cmd.ExecuteScalar().ToString(); 

                        //get user id
                        cmd = new SqlCeCommand("SELECT userId FROM users Where login ='" + _user + "'", cn);
                        id_user = cmd.ExecuteScalar().ToString();

                        if (id_vehicle.Length > 0 && id_subscriber.Length > 0 && id_user.Length > 0)
                        {
                            cmd = new SqlCeCommand("INSERT INTO vehicle_user (veh_id,user_id,assigned) VALUES(" + id_vehicle + "," + id_user + ",'2007-01-01')", cn);
                            cmd.ExecuteNonQuery();

                            cmd = new SqlCeCommand("INSERT INTO subscriber_history (sc_id,veh_id,assigned) VALUES(" + id_subscriber + "," + id_vehicle + ",'2007-01-01')", cn);
                            cmd.ExecuteNonQuery();

                            cmd = new SqlCeCommand("DELETE FROM lastpos where imei='" + _imei + "'", cn);
                            cmd.ExecuteNonQuery();

                            SqlCeCommand cmd2 = new SqlCeCommand();
                            cmd2.Connection = cn;
                            cmd2.CommandText = "INSERT INTO lastpos (imei,lastPos_fk,lat,lng,speed,heading,di,do,timeGMT) VALUES('" + _imei + "',1,@lat1,@lng1,0,0,0,0,0)";//42.06054,-88.02397
                            cmd2.Parameters.Add("@lat1", SqlDbType.Float).Value = 42.06054;
                            cmd2.Parameters.Add("@lng1", SqlDbType.Float).Value = -88.02397;
                            cmd2.Prepare();
                            cmd2.ExecuteNonQuery();

                            if (!motoTRBO)
                            {
                                cmd = new SqlCeCommand("INSERT INTO emergdi (sc_id,DI) VALUES(" + id_subscriber + "," + DI.ToString() + ")", cn);
                                cmd.ExecuteNonQuery();
                            }
                        }

                        MessageBox.Show("Vehicle " + _name + " added !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                    }
                    else
                    {
                        MessageBox.Show("There allready is a vehicle with IMEI : " + _imei + " in db ", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return false;
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    Console.WriteLine(cmd.CommandText);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return false;
                }
                return true;
            }
            else 
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                try
                {
                    cmd = new MySqlCommand("SELECT count(imei) FROM subscriber where imei='" + _imei + "'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() == "0")
                    {
                        string id_subscriber = "", id_vehicle = "", id_user = "";

                        cmd = new MySqlCommand("INSERT INTO vehicle VALUES(null,'" + SerialNr + "' ,'" + _name + "',1,0)", cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("INSERT INTO subscriber VALUES(null,'" + _imei + "')", cnMY);
                        cmd.ExecuteNonQuery();

                        //get vehicle id
                        cmd = new MySqlCommand("SELECT max(id) FROM vehicle ", cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            id_vehicle = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        //get subscriber id
                        cmd = new MySqlCommand("SELECT max(sc_id) FROM subscriber ", cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            id_subscriber = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        //get user id
                        cmd = new MySqlCommand("SELECT userId FROM users Where login ='" + _user + "'", cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            id_user = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        if (id_vehicle.Length > 0 && id_subscriber.Length > 0 && id_user.Length > 0)
                        {
                            cmd = new MySqlCommand("INSERT INTO vehicle_user VALUES(" + id_vehicle + "," + id_user + ",'2007-01-01')", cnMY);
                            cmd.ExecuteNonQuery();

                            cmd = new MySqlCommand("INSERT INTO subscriber_history VALUES(" + id_subscriber + "," + id_vehicle + ",'2007-01-01',null)", cnMY);
                            cmd.ExecuteNonQuery();

                            cmd = new MySqlCommand("DELETE FROM lastpos where imei='" + _imei + "'", cnMY);
                            cmd.ExecuteNonQuery();

                            //cmd = new MySqlCommand("INSERT INTO lastpos VALUES('" + _imei + "',1,42.06054,-88.02397,0,0,0,0,0)", cnMY);
                            //cmd.ExecuteNonQuery();                            

                            MySqlCommand cmd2 = new MySqlCommand();
                            cmd2.Connection = cnMY;
                            cmd2.CommandText = "INSERT INTO lastpos (imei,lastPos_fk,lat,lng,speed,heading,di,do,timeGMT) VALUES('" + _imei + "',1,?lat1,?lng1,0,0,0,0,0)";
                            cmd2.Parameters.Add("?lat1", MySqlDbType.Float).Value = 42.06054;
                            cmd2.Parameters.Add("?lng1", MySqlDbType.Float).Value = -88.02397;
                            cmd2.Prepare();
                            cmd2.ExecuteNonQuery();

                            if (!motoTRBO)
                            {
                                cmd = new MySqlCommand("INSERT INTO emergdi (sc_id,DI) VALUES(" + id_subscriber + "," + DI.ToString() + ")", cnMY);
                                cmd.ExecuteNonQuery();
                            }

                        }

                        MessageBox.Show("Vehicle " + _name + " added !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                    }
                    else
                    {
                        MessageBox.Show("There allready is a vehicle with IMEI : " + _imei + " in db ", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return false;
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return false;
                }
                return true;
            }
        }

        public void Insert_Zone_Alarm(Int32 p_sc_id, UInt32 p_timeGMT, Int32 p_zone_id, Int32 p_action,Boolean Zone)
        {
            string query = "";
            if (MSSQL)
            {
                try
                {
                    SqlCeCommand cmd;
                    if (Zone) query = "INSERT INTO geozoneinout (sc_id,timeGMT,zone_id,action,type) VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_zone_id + "," + p_action + ",1)";
                    else query = "INSERT INTO geozoneinout (sc_id,timeGMT,zone_id,action,type) VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_zone_id + "," + p_action + ",2)";
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                try
                {
                    MySqlCommand cmd;
                    if (Zone) query = "INSERT INTO geozoneinout VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_zone_id + "," + p_action + ",null,0,1)";
                    else query = "INSERT INTO geozoneinout VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_zone_id + "," + p_action + ",null,0,2)";
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();

                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public int getSC_ID_from_IMEI(string Imei)
        {
            int temp = 0;
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                try
                {
                    cmd = new SqlCeCommand("SELECT sc_id from subscriber where imei='" + Imei + "'", cn);
                    Reader = cmd.ExecuteReader();
                    if (Reader.Read())
                    {
                        if (Reader.IsDBNull(0)) temp = 0;
                        else temp = Reader.GetInt32(0);
                    }
                    Reader.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: getSC_ID_from_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                try
                {
                    /* cmd = new MySqlCommand("SELECT sc_id from subscriber where imei='" + Imei + "'", cnMY);
                     try
                     {
                         temp = (int)cmd.ExecuteScalar();
                     }
                     catch (MySqlException o)
                     {
                         Console.Write("File: SMdb_access.cs Meth: getSC_ID_from_IMEI : ");
                         Console.WriteLine(o.Message.ToString());
                     }*/
                    cmd = new MySqlCommand("SELECT sc_id from subscriber where imei='" + Imei + "'", cnMY);
                    Reader = cmd.ExecuteReader();
                    if (Reader.Read())
                    {
                        if (Reader.IsDBNull(0)) temp = 0;
                        else temp = Reader.GetInt32(0);
                    }
                    Reader.Close();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: getSC_ID_from_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }

            }
            return temp;
        }

        public void assign_GW_ip_2_unit(string imei, string gateway_ip)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;

                try
                {
                    cmd = new SqlCeCommand("INSERT INTO subs_gateway (sc_id, gateway_ip) VALUES(" + getSC_ID_from_IMEI(imei) + ",'" + gateway_ip + "')", cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                MySqlCommand cmd;
                try
                { 
                    cmd = new MySqlCommand("INSERT INTO subs_gateway (sc_id,gateway_ip) VALUES(" + getSC_ID_from_IMEI(imei) + ",'" + gateway_ip + "')", cnMY);
                    cmd.ExecuteNonQuery();                    
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public ArrayList get_all_IMEI_by_GW_ip(string gateway_ip)
        {
            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new SqlCeCommand("SELECT s.imei from subscriber s, subs_gateway g where s.sc_id=g.sc_id and g.gateway_ip='" + gateway_ip + "' ORDER BY s.imei", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            Tmp = dr.GetString(0);
                            ret.Add(Tmp);
                        }
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: get_all_IMEI_by_GW_ip : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_all_IMEI_by_GW_ip : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else
            {
                ArrayList ret = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader dr;
                String Tmp = "(no imei)";
                try
                {
                    cmd = new MySqlCommand("SELECT s.imei from subscriber s, subs_gateway g where s.sc_id=g.sc_id and g.gateway_ip='" + gateway_ip + "' ORDER BY s.imei", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            Tmp = dr.GetString(0);
                            ret.Add(Tmp);
                        }
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        Console.Write("File: SMdb_access.cs Meth: get_all_IMEI_by_GW_ip : ");
                        Console.WriteLine(o.Message.ToString());
                    }
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_all_IMEI_by_GW_ip : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }

        public String get_IP_for_IMEI(string imei)
        {
            String Tmp = "";
            if (MSSQL)
            {                
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                try
                {
                    cmd = new SqlCeCommand("SELECT gateway_ip from subs_gateway where sc_id=" + getSC_ID_from_IMEI(imei), cn);   
                    Reader = cmd.ExecuteReader();
                    if (Reader.Read())
                    {
                        if (Reader.IsDBNull(0)) Tmp = "";
                        else Tmp = Reader.GetString(0);
                    }
                    Reader.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_IP_for_IMEI : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }                
            }
            else
            {                
                MySqlCommand cmd;
                MySqlDataReader Reader;
                try
                {
                    cmd = new MySqlCommand("SELECT gateway_ip from subs_gateway where sc_id=" + getSC_ID_from_IMEI(imei), cnMY);
                    Reader = cmd.ExecuteReader();
                    if (Reader.Read())
                    {
                        if (Reader.IsDBNull(0)) Tmp = "";
                        else Tmp = Reader.GetString(0);
                    }
                    Reader.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_IP_for_IMEI : " + o.Message.ToString() + o.StackTrace.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }                
            }
            return Tmp;
        }

        public void delete_From_GW(string imei)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;

                try
                {
                    cmd = new SqlCeCommand("DELETE FROM subs_gateway where sc_id = " + getSC_ID_from_IMEI(imei), cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("DELETE FROM subs_gateway where sc_id = " + getSC_ID_from_IMEI(imei), cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: run_wait " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public void Insert_Speed_Alarm(Int32 p_sc_id, UInt32 p_timeGMT, Int32 p_speed)
        {
            if (MSSQL)
            {
                try
                {
                    SqlCeCommand cmd;
                    string query = "INSERT INTO speedalarm (sc_id,timeGMT,speed,preview) VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_speed + ",0)";
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();

                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                try
                {
                    MySqlCommand cmd;
                    string query = "INSERT INTO speedalarm VALUES(" + p_sc_id + "," + p_timeGMT + "," + p_speed + ",0,null,'" + "no address" + "')";
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();

                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public void Insert_Emerg_Alarm(Int32 p_sc_id, UInt32 p_timeGMT)
        {
            if (MSSQL)
            {
                try
                {
                    SqlCeCommand cmd;
                    string query = "INSERT INTO emergalarm (sc_id,timeGMT,preview) VALUES(" + p_sc_id + "," + p_timeGMT + ",0)";
                    cmd = new SqlCeCommand(query, cn);
                    cmd.ExecuteNonQuery();

                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                try
                {
                    MySqlCommand cmd;
                    string query = "INSERT INTO emergalarm VALUES(" + p_sc_id + "," + p_timeGMT + ",0,null,'" + "no address" + "')";
                    cmd = new MySqlCommand(query, cnMY);
                    cmd.ExecuteNonQuery();

                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: Insert_Zone_Alarm " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
        }

        public ArrayList get_all_zones()
        {
            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                try
                {
                    SqlCeCommand cmd;
                    SqlCeDataReader dr;
                    cmd = new SqlCeCommand("select name,lat,lng,lat2,lng2,idx from zone ORDER BY name", cn);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        Zones tmp = new Zones(dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetDouble(3), dr.GetDouble(4), dr.GetInt32(5));
                        ret.Add(tmp);
                    }
                    dr.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_zones_with_id " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else
            {
                ArrayList ret = new ArrayList();
                try
                {
                    MySqlCommand cmd;
                    MySqlDataReader dr;
                    cmd = new MySqlCommand("select name,lat,lng,lat2,lng2,idx from zone ORDER BY name", cnMY);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        Zones tmp = new Zones(dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetDouble(3), dr.GetDouble(4), dr.GetInt32(5));
                        ret.Add(tmp);
                    }
                    dr.Close();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_vehicles " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }

        public ArrayList get_all_landmarks()
        {
            if (MSSQL)
            {
                ArrayList ret = new ArrayList();
                try
                {
                    SqlCeCommand cmd;
                    SqlCeDataReader dr;
                    cmd = new SqlCeCommand("select name,lat,lng,idx from place ORDER BY name", cn);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        LandMark tmp = new LandMark(dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetInt32(3));
                        ret.Add(tmp);
                    }
                    dr.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_zones_with_id " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
            else
            {
                ArrayList ret = new ArrayList();
                try
                {
                    MySqlCommand cmd;
                    MySqlDataReader dr;
                    cmd = new MySqlCommand("select name,lat,lng,idx from place ORDER BY name", cnMY);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        LandMark tmp = new LandMark(dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetInt32(3));
                        ret.Add(tmp);
                    }
                    dr.Close();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_vehicles " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
                return ret;
            }
        }

        public Boolean addRFIDToDb(String _RFID, String _namePassenger, Int32 sc_id)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;                
                try
                {
                    cmd = new SqlCeCommand("INSERT INTO passenger (rfid,name,sc_id) VALUES('" + _RFID + "' ,'" + _namePassenger + "'," + sc_id + ")", cn);
                    cmd.ExecuteNonQuery();                        
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
            else
            {
                MySqlCommand cmd;                
                try
                {
                    cmd = new MySqlCommand("INSERT INTO passenger VALUES('" + _RFID + "' ,'" + _namePassenger + "',"+sc_id+",null)", cnMY);
                    cmd.ExecuteNonQuery();                   
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
        }

        public Boolean DeleteRFID(Int32 _unique_id)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("DELETE FROM passenger where id=" + _unique_id, cn);
                    cmd.ExecuteNonQuery();                    
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
            else
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("DELETE FROM passenger where id=" + _unique_id, cnMY);
                    cmd.ExecuteNonQuery();                    
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
        }

        public Boolean UpdateRFID(Int32 _unique_id, String _RFID, String _namePassenger, Int32 sc_id)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("UPDATE passenger SET rfid='" + _RFID + "' , name='" + _namePassenger + "', sc_id=" + sc_id + " where id="+_unique_id, cn);
                    cmd.ExecuteNonQuery();                    
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
            else
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("UPDATE passenger SET rfid='" + _RFID + "' , name='" + _namePassenger + "', sc_id=" + sc_id + " where id=" + _unique_id, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                    return false;
                }
                return true;
            }
        }



        public void deleteVehicle(String _imei)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                try
                {
                    String scid = "0";
                    String vehid = "0";
                    String vehname = "0";
                    cmd = new SqlCeCommand("SELECT count(imei) FROM subscriber where imei='" + _imei + "'", cn);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() != "0")
                    {
                        cmd = new SqlCeCommand("DELETE FROM lastpos where imei='" + _imei + "'", cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("SELECT sc_id FROM subscriber where imei='" + _imei + "'", cn);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            scid = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        cmd = new SqlCeCommand("SELECT veh_id FROM subscriber_history where sc_id=" + scid, cn);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            vehid = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        cmd = new SqlCeCommand("SELECT name FROM vehicle where id=" + vehid, cn);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            vehname = Reader.GetString(0);
                        }
                        Reader.Close();

                        cmd = new SqlCeCommand("DELETE FROM vehicle where id=" + vehid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM vehicle_user where veh_id=" + vehid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM subscriber_history where veh_id=" + vehid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM subscriber where sc_id=" + scid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM subs_gateway where sc_id=" + scid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM emergdi where sc_id=" + scid, cn);
                        cmd.ExecuteNonQuery();

                        cmd = new SqlCeCommand("DELETE FROM messages where sc_id=" + scid, cn);
                        cmd.ExecuteNonQuery();

                        try
                        {
                            cmd = new SqlCeCommand("DELETE FROM subs_gateway where sc_id=" + scid, cn);
                            cmd.ExecuteNonQuery();
                        }
                        catch
                        {
                        }
                        MessageBox.Show("Delete IMEI finish.");

                    }
                    else
                    {
                        MessageBox.Show("Vehicle Not in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                try
                {
                    String scid = "0";
                    String vehid = "0";
                    String vehname = "0";
                    cmd = new MySqlCommand("SELECT count(imei) FROM subscriber where imei='" + _imei + "'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() != "0")
                    {
                        cmd = new MySqlCommand("DELETE FROM lastpos where imei='" + _imei + "'", cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("SELECT sc_id FROM subscriber where imei='" + _imei + "'", cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            scid = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        cmd = new MySqlCommand("SELECT veh_id FROM subscriber_history where sc_id=" + scid, cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            vehid = Reader.GetInt32(0).ToString();
                        }
                        Reader.Close();

                        cmd = new MySqlCommand("SELECT name FROM vehicle where id=" + vehid, cnMY);
                        Reader = cmd.ExecuteReader();
                        while (Reader.Read())
                        {
                            vehname = Reader.GetString(0);
                        }
                        Reader.Close();

                        cmd = new MySqlCommand("DELETE FROM vehicle where id=" + vehid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM vehicle_user where veh_id=" + vehid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM subscriber_history where veh_id=" + vehid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM subscriber where sc_id=" + scid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM subs_gateway where sc_id=" + scid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM emergdi where sc_id=" + scid, cnMY);
                        cmd.ExecuteNonQuery();

                        cmd = new MySqlCommand("DELETE FROM messages where sc_id=" + scid, cnMY);
                        cmd.ExecuteNonQuery();

                        try
                        {
                            cmd = new MySqlCommand("DELETE FROM subs_gateway where sc_id=" + scid, cnMY);
                            cmd.ExecuteNonQuery();
                        }
                        catch
                        {
                        }
                        MessageBox.Show("Delete IMEI finish.");

                    }
                    else
                    {
                        MessageBox.Show("Vehicle Not in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public void editVehicle(String _id, String _name, Int32 _DI, String _lp)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("select count(id) from vehicle where id=\'" + _id + "\'", cn);
                    object temp = cmd.ExecuteScalar();

                    cmd = new SqlCeCommand("select sc_id from subscriber_history where veh_id=\'" + _id + "\'", cn);
                    object tmp_sc_id = cmd.ExecuteScalar();

                    if (Convert.ToInt32(temp) > 0)
                    {
                        cmd = new SqlCeCommand("UPDATE vehicle SET name='" + _name + "',lp='" + _lp + "' where id=" + _id, cn);
                        cmd.ExecuteNonQuery();
                        cmd = new SqlCeCommand("update emergdi SET DI=" + _DI.ToString() + " where sc_id=" + Convert.ToInt32(tmp_sc_id), cn);
                        if (cmd.ExecuteNonQuery() == 0)
                        {
                            cmd = new SqlCeCommand("insert into emergdi (sc_id,DI) VALUES(" + Convert.ToInt32(tmp_sc_id) + "," + _DI.ToString() + ")", cn);
                            cmd.ExecuteNonQuery();
                        }
                        MessageBox.Show("Vehicle edited!", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("Vehicle Not found in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("select count(id) from vehicle where id=\'" + _id + "\'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    cmd = new MySqlCommand("select sc_id from subscriber_history where veh_id=\'" + _id + "\'", cnMY);
                    object tmp_sc_id = cmd.ExecuteScalar();

                    if (Convert.ToInt32(temp) > 0)
                    {
                        cmd = new MySqlCommand("UPDATE vehicle SET name='" + _name + "' where id=" + _id, cnMY);                        
                        cmd.ExecuteNonQuery();
                        cmd = new MySqlCommand("update emergdi SET DI=" + _DI.ToString() + " where sc_id=" + Convert.ToInt32(tmp_sc_id), cnMY);                        
                        //cmd.ExecuteNonQuery();
                        if (cmd.ExecuteNonQuery() == 0)
                        {
                            cmd = new MySqlCommand("insert into emergdi (sc_id,DI) VALUES(" + Convert.ToInt32(tmp_sc_id) + "," + _DI.ToString() + ")", cnMY);
                            cmd.ExecuteNonQuery();
                        }
                        MessageBox.Show("Vehicle edited!", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("Vehicle Not found in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public Hashtable get_Vechicle_and_zone()
        {
            Hashtable ret = new Hashtable();
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                try
                {
                    cmd = new SqlCeCommand("SELECT l.imei, l.lat, l.lng, s.sc_id,v.name from lastpos l, subscriber s, subscriber_history h,vehicle v  where l.imei = s.imei and h.sc_id=s.sc_id and h.veh_id=v.id", cn);
                    try
                    {
                        dr = cmd.ExecuteReader();

                        while (dr.Read())
                        {
                            Vehicle_with_zone obj = new Vehicle_with_zone(dr.GetInt32(3), dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetString(4));                            
                            ret.Add(dr.GetString(0),obj);
                        }
                        //Clean up.
                        dr.Close();
                    }
                    catch (Exception o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: get_Vechicle_and_zone dr : ");
                        Console.WriteLine(o.Message.ToString());
                        throw new ArgumentException(o.Message.ToString());
                    }

                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_Vechicle_and_zone SqlCeCommand: ");
                    Console.WriteLine(o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }                
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader dr;
                try
                {
                    //cmd = new MySqlCommand("SELECT l.imei, l.lat, l.lng, s.sc_id from lastpos l, subscriber s where l.imei = s.imei", cnMY);
                    cmd = new MySqlCommand("SELECT l.imei, l.lat, l.lng, s.sc_id,v.name from lastpos l, subscriber s, subscriber_history h,vehicle v  where l.imei = s.imei and h.sc_id=s.sc_id and h.veh_id=v.id", cnMY);
                    try
                    {
                        dr = cmd.ExecuteReader();
                        while (dr.Read())
                        {
                            Vehicle_with_zone obj = new Vehicle_with_zone(dr.GetInt32(3), dr.GetString(0), dr.GetDouble(1), dr.GetDouble(2), dr.GetString(4));
                            ret.Add(dr.GetString(0), obj);
                        }
                        //Clean up.
                        dr.Close();
                    }
                    catch (MySqlException o)
                    {
                        Console.WriteLine("File: SMdb_access.cs Meth: get_Vechicle_and_zone dr : ");
                        Console.WriteLine(o.Message.ToString());
                        throw new ArgumentException(o.Message.ToString());
                    }

                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_Vechicle_and_zone MySqlCommand: ");
                    Console.WriteLine(o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }                
            }
            return ret;
        }


        public Hashtable get_sc_id_and_DI()
        {
            Hashtable ret = new Hashtable();
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader dr;
                try
                {
                    cmd = new SqlCeCommand("SELECT sc_id,DI from emergdi", cn);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        ret.Add(dr.GetInt32(0), dr.GetInt32(1));
                    }
                    //Clean up.
                    dr.Close();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_sc_id_and_DI SqlCeCommand: ");
                    Console.WriteLine(o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader dr;
                try
                {
                    cmd = new MySqlCommand("SELECT sc_id,DI from emergdi", cnMY);
                    dr = cmd.ExecuteReader();
                    while (dr.Read())
                    {
                        ret.Add(dr.GetInt32(0), dr.GetInt32(1));
                    }
                    dr.Close();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_Vechicle_and_zone MySqlCommand: ");
                    Console.WriteLine(o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            return ret;
        }

        public ArrayList getAllVehicles()
        {
            Vehicles veh;
            if (MSSQL)
            {
                ArrayList vehList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
               /* cmd = new SqlCeCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI"
                                                                            + " FROM vehicle as veh"
                                                                            + " INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id) INNER JOIN subscriber as sub"
                                                                            + " on (sh.sc_id = sub.sc_id) LEFT JOIN emergdi as em on (sub.sc_id = em.sc_id)"
                                                                            + " Group by sub.imei,veh.id,veh.lp,veh.name,em.DI"
                                                                            + " ORDER BY sub.imei", cn);*/
                cmd = new SqlCeCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI"
                                                                            + " FROM vehicle as veh"
                                                                            + " INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id) INNER JOIN subscriber as sub"
                                                                            + " on (sh.sc_id = sub.sc_id) LEFT JOIN emergdi as em on (sub.sc_id = em.sc_id)"
                                                                            + " Group by sub.imei,veh.id,veh.lp,veh.name,em.DI"
                                                                            + " ORDER BY sub.imei", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("1" + ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
            else 
            {
                ArrayList vehList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,e.DI"
                                                                                        + " FROM vehicle as veh"
                                                                                        + " INNER JOIN (subscriber_history as sh,subscriber as sub)"
                                                                                        + " on ( veh.id = sh.veh_id and sh.sc_id = sub.sc_id)"
                                                                                        + " LEFT JOIN (emergdi as e)"
                                                                                        + " on (sub.sc_id = e.sc_id)"
                                                                                        + " Group by sub.imei"
                                                                                        + " ORDER BY sub.imei", cnMY);

                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("1"+ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
        }

        public ArrayList getAllVehicle_sc_id()
        {
            ArrayList vehList = new ArrayList();
            if (MSSQL)
            {                
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT veh.name,sh.sc_id"
                                                                            + " FROM vehicle as veh"
                                                                            + " INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id)"                                                                                                                                                        
                                                                            + " ORDER BY veh.name", cn);

                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        Vehicle_sc_id veh = new Vehicle_sc_id(Reader.GetInt32(1),Reader.GetString(0));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT veh.name,sh.sc_id"
                                                                            + " FROM vehicle as veh"
                                                                            + " INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id)"
                                                                            + " ORDER BY veh.name", cnMY);

                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        Vehicle_sc_id veh = new Vehicle_sc_id(Reader.GetInt32(1), Reader.GetString(0));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
        }


        public ArrayList getAllRFID()
        {
            ArrayList RfIDList = new ArrayList();
            if (MSSQL)
            {
                
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT pa.id,pa.rfid,pa.name,veh.name,pa.sc_id"
                                                                            + " FROM passenger as pa"
                                                                            + " INNER JOIN subscriber_history as sh ON (pa.sc_id = sh.sc_id) INNER JOIN vehicle as veh"
                                                                            + " on (sh.veh_id = veh.id)"                                                    
                                                                            + " ORDER BY pa.id", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        RFIDs rfid = new RFIDs(Reader.GetString(1), Reader.GetString(2), Reader.GetString(3), Reader.GetInt32(4),Reader.GetInt32(0));
                        RfIDList.Add(rfid);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return RfIDList;
            }
            else
            {  
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT pa.id,pa.rfid,pa.name,veh.name,pa.sc_id"
                                                                                        + " FROM passenger as pa"
                                                                                        + " INNER JOIN (subscriber_history as sh,vehicle as veh)"
                                                                                        + " on ( pa.sc_id = sh.sc_id and sh.veh_id = veh.id)"                                                                                        
                                                                                        + " ORDER BY pa.id", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        RFIDs rfid = new RFIDs(Reader.GetString(1), Reader.GetString(2), Reader.GetString(3), Reader.GetInt32(4), Reader.GetInt32(0));
                        RfIDList.Add(rfid);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return RfIDList;
            }
        }

        public Hashtable getAll_imei_sc_id()
        {
            Hashtable List = new Hashtable();
            if (MSSQL)
            {
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT sc_id,imei from subscriber", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {                            
                        try
                        {
                            List.Add(Reader.GetString(1),Reader.GetInt32(0));
                        }
                        catch {  }
                    }
                    Reader.Close();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                }               
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT sc_id,imei from subscriber", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        try
                        {
                            List.Add(Reader.GetString(1), Reader.GetInt32(0));
                        }
                        catch { }
                    }
                    Reader.Close();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);                    
                }               
            }
            return List;
        }

        public ArrayList getAllUsersForCurrentVehicle(String _id)
        {
            if (MSSQL)
            {
                ArrayList userList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT firstName, lastName, login, password,userId FROM users as u"
                                                                            + " inner join vehicle_user as vh"
                                                                            + " on (vh.user_id=u.userID)"
                                                                            + " where vh.veh_id =" + _id
                                                                            + " GROUP BY u.userId,u.firstName, u.lastName, u.login, u.password"
                                                                            , cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Reader.GetInt32(4));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
            else 
            {
                ArrayList userList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT firstName, lastName, login, password,userId FROM users as u"
                                                                            + " inner join( vehicle_user as vh)"
                                                                            + " on(vh.user_id=u.userID)"
                                                                            + " where vh.veh_id =" + _id.ToString()
                                                                            + " GROUP BY u.userId"
                                                                            , cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Reader.GetInt32(4));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
        }

        //get all users that ar not assigned to current vehicle
        public ArrayList getAllOtherUsersForCurrentVehicle(String _id)
        {
            if (MSSQL)
            {
                ArrayList userList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT firstName, lastName, login, password,userId FROM users as u"
                                                                            + " WHERE u.userID NOT IN "
                                                                                + " (SELECT user_id FROM vehicle_user "
                                                                                + " WHERE veh_id =" + _id
                                                                            + ")"
                                                                            , cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Convert.ToInt32(Reader.GetValue(4)));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
            else 
            {
                ArrayList userList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT firstName, lastName, login, password,userId FROM users as u"
                                                                            + " WHERE u.userID NOT IN "
                                                                                + " (SELECT user_id FROM vehicle_user "
                                                                                + " WHERE veh_id =" + _id
                                                                            + ")"
                                                                            , cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Convert.ToInt32(Reader.GetValue(4)));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
        }
        
        public void addUserToDb(String _firstName, String _lastname, String _userName, String _password)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("select count(login) from users where login=\'" + _userName + "\'", cn);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() == "0")
                    {
                        cmd = new SqlCeCommand("INSERT INTO users (firstName,lastName,login,password) VALUES('" + _firstName + "','" + _lastname + "','" + _userName + "','" + _password + "')", cn);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user added !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User allready in db or some fields are empty", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("select count(login) from users where login=\'" + _userName + "\'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() == "0")
                    {
                        cmd = new MySqlCommand("INSERT INTO users VALUES(null,'" + _firstName + "','" + _lastname + "','" + _userName + "','" + _password + "')", cnMY);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user added !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User allready in db or some fields are empty", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public void updateUserToDb(String _firstName, String _lastname, String _userName, String _password)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("select count(login) from users where login=\'" + _userName + "\'", cn);
                    object temp = cmd.ExecuteScalar();

                    if (Convert.ToInt32(temp) > 0)
                    {
                        cmd = new SqlCeCommand("UPDATE users SET firstName='" + _firstName + "',lastName='" + _lastname + "',login='" + _userName + "',password='" + _password + "' WHERE login='" + _userName + "'", cn);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user edited!", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User Not found in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("select count(login) from users where login=\'" + _userName + "\'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    if (Convert.ToInt32(temp) > 0)
                    {
                        cmd = new MySqlCommand("UPDATE users SET firstName='" + _firstName + "',lastName='" + _lastname + "',login='" + _userName + "',password='" + _password + "' WHERE login='" + _userName + "'", cnMY);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user edited!", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User Not found in db", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public void deleteUser(string userName)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("select count(login) from users where login=\'" + userName + "\'", cn);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() != "0")
                    {
                        cmd = new SqlCeCommand("DELETE FROM users where login='" + userName + "'", cn);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user Deleted !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User Not found in DB", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("select count(login) from users where login=\'" + userName + "\'", cnMY);
                    object temp = cmd.ExecuteScalar();

                    if (temp.ToString() != "0")
                    {
                        cmd = new MySqlCommand("DELETE FROM users where login='" + userName + "'", cnMY);
                        cmd.ExecuteNonQuery();
                        MessageBox.Show("user Deleted !", "successfuly!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);

                    }
                    else
                    {
                        MessageBox.Show("User Not found in DB", "error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                catch (MySqlException ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        //get all users
        public ArrayList getAllUsers()
        {
            if (MSSQL)
            {
                ArrayList userList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT firstName, lastName, login, password,userId FROM users", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Convert.ToInt32(Reader.GetValue(4)));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
            else 
            {
                ArrayList userList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT firstName, lastName, login, password,userId FROM users", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        User usr = new User(Reader.GetValue(0).ToString(), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), Convert.ToInt32(Reader.GetValue(4)));
                        userList.Add(usr);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return userList;
            }
        }

        //get all vehicles for current user
        public ArrayList getAllVehiclesForCurrentUser(String _id)
        {
            Vehicles veh;
            if (MSSQL)
            {
                ArrayList vehList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI FROM vehicle as veh INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id) INNER JOIN subscriber as sub on (sh.sc_id = sub.sc_id) LEFT JOIN emergdi as em on (sub.sc_id = em.sc_id) inner join vehicle_user as vh on(vh.veh_id=veh.id) Where vh.user_id=" + _id + " Group by sub.imei,veh.id,veh.lp,veh.name,em.DI ORDER BY sub.imei", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("2" + ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
            else 
            {
                ArrayList vehList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI"
                                                                + " FROM vehicle as veh"
                                                                + " INNER JOIN (subscriber_history as sh,subscriber as sub)"
                                                                + " on ( veh.id = sh.veh_id and sh.sc_id = sub.sc_id)"
                                                                + " left join(emergdi as em)"
                                                                + " on(sub.sc_id = em.sc_id)"
                                                                + " inner join( vehicle_user as vh)"
                                                                + " on(vh.veh_id=veh.id)"
                                                                + " Where vh.user_id=" + _id.ToString()
                                                                + " Group by sub.imei"
                                                                + " ORDER BY sub.imei", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("2"+ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
        }

        public DataTable get_zone_table(string command)
        {
            if (MSSQL)
            {
                SqlCeDataAdapter dataAdapter = new SqlCeDataAdapter(command, cn);
                DataTable table = new DataTable();
                table.Locale = System.Globalization.CultureInfo.InvariantCulture;
                dataAdapter.Fill(table);
                return table;
            }
            else
            {
                MySqlDataAdapter dataAdapter = new MySqlDataAdapter(command, cnMY);
                DataTable table = new DataTable();
                table.Locale = System.Globalization.CultureInfo.InvariantCulture;
                dataAdapter.Fill(table);
                return table;
            }
        }

        //get all vehicles that ar not assigned to current user
        public ArrayList getAllOtherVehiclesForCurrentUser(String _id)
        {
            Vehicles veh;
            if (MSSQL)
            {
                ArrayList vehList = new ArrayList();
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI FROM vehicle as veh INNER JOIN subscriber_history as sh ON (veh.id = sh.veh_id) INNER JOIN subscriber as sub on (sh.sc_id = sub.sc_id) LEFT JOIN emergdi as em on (sub.sc_id = em.sc_id) left join vehicle_user as vh on(vh.veh_id=veh.id) Where veh.id NOT IN (SELECT veh_id FROM vehicle_user WHERE user_id =" + _id + ")  Group by sub.imei,veh.id,veh.lp,veh.name,em.DI ORDER BY sub.imei", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("3" + ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
            else 
            {
                ArrayList vehList = new ArrayList();
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT veh.id,sub.imei,veh.lp,veh.name,em.DI"
                                                                            + " FROM vehicle as veh"
                                                                            + " INNER JOIN (subscriber_history as sh,subscriber as sub)"
                                                                            + " on ( veh.id = sh.veh_id and sh.sc_id = sub.sc_id)"
                                                                            + " LEFT join(emergdi as em,vehicle_user as vh)"
                                                                            + " on(sub.sc_id = em.sc_id and vh.veh_id=veh.id)"
                                                                            + " WHERE veh.id NOT IN "
                                                                                + " (SELECT veh_id FROM vehicle_user "
                                                                                + " WHERE user_id =" + _id.ToString()
                                                                            + ")"
                                                                            + " Group by sub.imei"
                                                                            + " ORDER BY sub.imei", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        if (Reader.IsDBNull(4)) veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", 0);
                        else veh = new Vehicles(Convert.ToInt32(Reader.GetValue(0)), Reader.GetValue(1).ToString(), Reader.GetValue(2).ToString(), Reader.GetValue(3).ToString(), "", Reader.GetInt32(4));                        
                        vehList.Add(veh);
                    }
                }
                catch (Exception ee)
                {
                    Console.WriteLine("3"+ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
                return vehList;
            }
        }
        
        public ArrayList getMessage4vAL()
        {
            ArrayList List = new ArrayList();
            Messages4vAL tmp;
            if (MSSQL)
            {                
                SqlCeCommand cmd;
                SqlCeDataReader Reader;
                cmd = new SqlCeCommand("SELECT s.type,s.imei,s.cmd,s.idx,veh.lp,s.status FROM sendtoval as s INNER JOIN subscriber as sub on (s.imei = sub.imei) INNER JOIN subscriber_history as sh ON (sub.sc_id = sh.sc_id) INNER JOIN vehicle as veh ON (veh.id = sh.veh_id) WHERE s.status !=2  Group by s.type,s.imei,s.cmd,s.idx,veh.lp,s.status", cn);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        tmp = new Messages4vAL(Reader.GetInt32(0), Reader.GetString(1), Reader.GetString(2), Reader.GetInt32(3), Reader.GetString(4), Reader.GetInt32(5));                        
                        List.Add(tmp);

                    }
                    Reader.Close();
                }
                catch (Exception ee)
                {
                    Console.WriteLine("3" + ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }                
            }
            else
            {
                MySqlCommand cmd;
                MySqlDataReader Reader;
                cmd = new MySqlCommand("SELECT s.type,s.imei,s.cmd,s.idx,veh.lp,s.status"
                                                                            + " FROM sendtoval as s"
                                                                            + " INNER JOIN (subscriber as sub,subscriber_history as sh,vehicle as veh)"
                                                                            + " on (s.imei = sub.imei and sub.sc_id = sh.sc_id and sh.veh_id = veh.id)"
                                                                            + " where s.status != 2"
                                                                            + " Group by sub.imei", cnMY);
                try
                {
                    Reader = cmd.ExecuteReader();
                    while (Reader.Read())
                    {
                        tmp = new Messages4vAL(Reader.GetInt32(0), Reader.GetString(1), Reader.GetString(2), Reader.GetInt32(3), Reader.GetString(4), Reader.GetInt32(5));                        
                        List.Add(tmp);
                    }
                    Reader.Close();
                }
                catch (Exception ee)
                {
                    Console.WriteLine("3" + ee.Message + "\n" + ee.StackTrace);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            return List;
        }

        public void Change_Message_Status(Int32 Idx, Int32 val)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("UPDATE sendtoval SET status="+ val +" where idx="+Idx, cn);
                    //cmd = new SqlCeCommand("UPDATE updatelist SET version='1.0.0.2'", cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("UPDATE sendtoval SET status=1 where idx=" + Idx, cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public String get_last_DBUpdate()
        {
            String ret = "0";
            if (MSSQL)
            {
                try
                {
                    SqlCeCommand cmd;
                    cmd = new SqlCeCommand("select version from updatelist order by idx desc", cn);
                    object temp = cmd.ExecuteScalar();
                    ret = Convert.ToString(temp);
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_active_state : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                try
                {
                    MySqlCommand cmd;
                    cmd = new MySqlCommand("select version from updatelist order by idx desc", cnMY);
                    object temp = cmd.ExecuteScalar();
                    ret = Convert.ToString(temp);
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: get_active_state : " + o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            return ret;
        }

        public String Get_DB_version()
        {
            String name = "";
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    String query = "select max(idx) from updatelist";
                    cmd = new SqlCeCommand(query, cn);
                    Int32 nr = (Int32)cmd.ExecuteScalar();

                    query = "SELECT version from updatelist where idx=" + nr;
                    cmd = new SqlCeCommand(query, cn);
                    name = (String)cmd.ExecuteScalar();
                }
                catch (Exception o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: test_place_exist SqlCeCommand: ");
                    Console.WriteLine(o.Message.ToString() + o.StackTrace);
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            else
            {
                MySqlCommand cmd;
                try
                {
                    String query = "SELECT version from updatelist where idx=(select max(idx) from updatelist)";
                    cmd = new MySqlCommand(query, cnMY);
                    name = (String)cmd.ExecuteScalar();
                }
                catch (MySqlException o)
                {
                    Console.WriteLine("File: SMdb_access.cs Meth: test_place_exist MySqlCommand: ");
                    Console.WriteLine(o.Message.ToString());
                    throw new ArgumentException(o.Message.ToString());
                }
            }
            return name;
        }

        // add connection between user and vehicle
        public void addVehicleUserConnection(string vehId, string userId)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("INSERT INTO vehicle_user VALUES(" + vehId + "," + userId + ",'2007-01-01')", cn);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("INSERT INTO vehicle_user VALUES(" + vehId + "," + userId + ",'2007-01-01')", cnMY);
                    cmd.ExecuteNonQuery();
                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }
        //remove connection between user and vehicle
        public void removeVehicleUserConnection(string vehId, string userId)
        {
            if (MSSQL)
            {
                SqlCeCommand cmd;
                try
                {
                    cmd = new SqlCeCommand("DELETE FROM vehicle_user WHERE veh_id ='" + vehId + "' and user_id='" + userId + "'", cn);
                    cmd.ExecuteNonQuery();

                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("SqlCe connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
            else 
            {
                MySqlCommand cmd;
                try
                {
                    cmd = new MySqlCommand("DELETE FROM vehicle_user WHERE veh_id ='" + vehId + "' and user_id='" + userId + "'", cnMY);
                    cmd.ExecuteNonQuery();

                }
                catch (Exception ee)
                {
                    Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                    MessageBox.Show("MySql connection Failed !!!!", "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }


    }
}