Notify Changed Selector's Property

- This is a example for ListBox's ItemsSource Changed

void Window1_Loaded(object sender, RoutedEventArgs e)
{

DependencyPropertyDescriptor myDescriptor = DependencyPropertyDescriptor.FromProperty(ListBox.ItemsSourceProperty, typeof(ListBox));

//listBox is Name Of ListBox
myDescriptor.AddValueChanged(listBox, new EventHandler(ItemsSourceChanged));
}

//Method will be called when ItemsSOurce Changed
void ItemsSourceChanged(Object sender, EventArgs e)
{

}