private void bSwitchClientState_Click(object sender, RoutedEventArgs e)
 {
     try
     {
         cc.SwitchClientState();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
     }
 }
 private void Button_Click(object sender, RoutedEventArgs e)
 {
     cc.SwitchClientState();
 }