static void ControlsListItemSelected(ControlListItem obj)
 {
     _popup.IsOpen = false;
     var spy = new SilverlightSpy();
     spy.TargetElement = obj.Tag;
     spy.Show();
 }
 private void Button_Click(object sender, RoutedEventArgs e)
 {
     SilverlightSpy spy = new SilverlightSpy();
     spy.Show();
 }