//
 // Connect the selected controller
 private async void OnBtnConnectControllerClick(object sender, RoutedEventArgs e)
 {
     if (_controller.IsConnected)
     {
         await _controller.Disconnect();
     }
     else
     {
         UserIndex controllerIndex;
         if (!Enum.TryParse(cbController.Text, out controllerIndex))
         {
             controllerIndex = UserIndex.Any;
         }
         await _controller.Connect(controllerIndex);
     }
 }