private void HCSCM_entityset_manager_bindingRfid_FormClosing(object sender, FormClosingEventArgs e)
 {
     if (rfidCode != null)
     {
         rfidCode.DisConnecttion();
     }
 }
 /// <summary>
 ///
 /// </summary>
 private void StopRfidCode()
 {
     if (rfidCode != null)
     {
         rfidCode.DisConnecttion();
     }
 }