private void UserControl_Loaded(object sender, System.Windows.RoutedEventArgs e)
 {
     try
     {
         c_RFID = new RFID((string)RegistryAccess.Primary.GetValue("Port"));
         c_RFID.IncomingRfid += new RfidRead(c_RFID_IncomingRfid);
         c_RFID.RfidFailure += new RfidFail(c_RFID_RfidFailure);
     }
     catch
     {
         Switcher.Switch(new EditUserInfoFailure(""));
     }
 }