public static void RemoveEventHandler(DependencyObject element, RoutedEvent routedEvent, Delegate handler)
{
UIElement uiElement = element as UIElement;
if (uiElement != null)
{
uiElement.RemoveHandler(routedEvent, handler);
}
else
{
ContentElement contentElement = element as ContentElement;
if (contentElement != null)
{
contentElement.RemoveHandler(routedEvent, handler);
}
else
{
UIElement3D uiElement3d = element as UIElement3D;
if (uiElement3d != null)
{
uiElement3d.RemoveHandler(routedEvent, handler);
}
}
}
}
public static void RemoveHandler(this DependencyObject element, RoutedEvent routedEvent, Delegate handler)
{
Debug.Assert(element != null, "Element must not be null");
Debug.Assert(routedEvent != null, "RoutedEvent must not be null");
UIElement uiElement = element as UIElement;
if (uiElement != null)
{
uiElement.RemoveHandler(routedEvent, handler);
}
else
{
ContentElement contentElement = element as ContentElement;
if (contentElement != null)
{
contentElement.RemoveHandler(routedEvent, handler);
}
else
{
UIElement3D uiElement3D = element as UIElement3D;
if (uiElement3D != null)
{
uiElement3D.RemoveHandler(routedEvent, handler);
}
}
}
}
