You should be able to do something like this (store / phone)
<esri:MapView.Overlays>
<esri:OverlayItemsControl>
<Grid x:Name="overlay" esri:MapView.ViewOverlayAnchor="{Binding}"
Width="400" Height="400">
<Button Content="Click me!"
Tapped="Button_Tapped"
></Button>
</Grid>
</esri:OverlayItemsControl>
</esri:MapView.Overlays>
private void Button_Tapped(object sender, TappedRoutedEventArgs e)
{
// stuff
e.Handled = true;
}
Could you describe what events you are using and which platform?