private void HttpServer_DeviceRegistration(string DeviceSerialNumber, DateTime LastPingTime, DateTime InstalledDate, double Longitude, double Latitude)
        {
            int C = S1.CMDeviceInfoes.Where(T => T.DeviceSerialNumber.Trim().Equals(DeviceSerialNumber)).Count();

            if (C == 0)
            {
                CMDeviceInfo C1 = new CMDeviceInfo();
                C1.DeviceSerialNumber = DeviceSerialNumber;
                C1.InstallationDate   = InstalledDate;
                C1.LastOnlineTime     = LastPingTime;
                C1.Latitude           = Latitude;
                C1.Longitude          = Longitude;
                S1.CMDeviceInfoes.Add(C1);
                S1.SaveChanges();
            }
        }
 private void HttpServer_DeviceRegistration(string DeviceSerialNumber, DateTime LastPingTime, DateTime InstalledDate, double Longitude, double Latitude)
 {
     int C = S1.CMDeviceInfoes.Where(T => T.DeviceSerialNumber.Trim().Equals(DeviceSerialNumber)).Count();
     if (C == 0)
     {
         CMDeviceInfo C1 = new CMDeviceInfo();
         C1.DeviceSerialNumber = DeviceSerialNumber;
         C1.InstallationDate = InstalledDate;
         C1.LastOnlineTime = LastPingTime;
         C1.Latitude = Latitude;
         C1.Longitude = Longitude;
         S1.CMDeviceInfoes.Add(C1);
         S1.SaveChanges();
     }
 }