private void Circle_Tapped(object sender, MessageEventArgs e)
 {
     if (Click != null)
     {
         Click(sender, e);
     }
 }
 private async void Circle_Click(object sender, MessageEventArgs e)
 {
     var dialog = new MessageDialog(e.Message, "Circle");
     await dialog.ShowAsync();
 }
 private void ClickCircle_Tapped(object sender, Windows.UI.Xaml.Input.TappedRoutedEventArgs e)
 {
     var device = e.PointerDeviceType.ToString();
     var eventArgs = new MessageEventArgs($"This control was clicked by: {device}");
     Circle_Tapped(this, eventArgs);
 }