static void OnSelectedItemChanged(Control sender, AttachedPropertyChangedEventArgs<object> e)
{
IItemsSourceFeature feature = sender.GetItemsSourceFeature();
if(feature != null) {
Action<Control> selectionChangedHandler = sender.GetValue(HandlerProperty);
if(selectionChangedHandler == null) {
selectionChangedHandler = OnSelectionChanged;
sender.SetValue(HandlerProperty, selectionChangedHandler);
feature.AddSelectionChangedCallback(sender, selectionChangedHandler);
}
feature.SetSelectedItem(sender, e.NewValue);
sender.SetSelectedItem(feature.GetSelectedItem(sender));
//TODO test recursion or add assert
}
}
public static object GetValue(Control control, string property)
{
return control.GetValue(property, true);
}