wp7 and dependency property : onChanged and onRead?
- by user233150
hi here's my question :
well I want build a wp7 control,so I write it and all go well, but the problem is that I can intercept on write(see onItemsSourcePropertyChanged)but not on read I would like explain better:
public static readonly
DependencyProperty ItemsSourceProperty=
DependencyProperty.Register(
"ItemsSource",
typeof(ObservableCollection<ObjWithDesc>),
typeof(HorizontalListBox),
new PropertyMetadata(OnItemsSourcePropertyChanged)
);
static void OnItemsSourcePropertyChanged(DependencyObject obj,DependencyPropertyChangedEventArgs e)
{
((HorizontalListBox) obj).OnItemsSourcePropertyChanged(e);
}
OnItemsSourcePropertyChanged is called when I use SetValue(dp,..) but there isn't onItemsSourcePropertyRead ? that is called when I Use GetValue()? thanks
