private void OnPopResponse(PopResponseArgs args)
 {
     if (ResponseEvent != null)
      {
     ResponseEvent(this, args);
      }
 }
 void client_ResponseEvent(object sender, PopResponseArgs e)
 {
     IPopResponse responseCallback = OperationContext.Current.GetCallbackChannel<IPopResponse>();
      if (responseCallback != null)
      {
     responseCallback.Response(e.Response);
      }
 }
 void popMessage_ResponseEvent(object sender, PopResponseArgs e)
 {
     OnPopResponse(e);
 }