private static DependencyPropertyChangedCallbacks GetCallbacksForElement(DependencyObject element) { var callbacks = GetDependencyPropertyCallbacks(element); if (callbacks == null) { callbacks = new DependencyPropertyChangedCallbacks(); SetDependencyPropertyCallbacks(element, callbacks); } return(callbacks); }
public static void SetDependencyPropertyCallbacks( DependencyObject dependencyObject, DependencyPropertyChangedCallbacks value) { dependencyObject.SetValue(DependencyPropertyCallbacksProperty, value); }