Menu item opening and closing event

Question

I want to handle an event, whenever the Submenus of a menu item opens. Same for closing. how can I do this?

Answer 1

Very easy. Subscribe to a MenuItem's SubmenuOpened event. Traditional way to do it:

MidItem.SubmenuOpened += new RoutedEventHandler(MidItem_SubmenuOpened);

private void MidItem_SubmenuOpened(object sender, RoutedEventArgs e)
{
    //Menu Open Logic Here
}

Or the cool dynamic method:

MidItem.SubmenuOpened += delegate(object sender, RoutedEventArgs e)
{
    //Menu Open Logic Here
};

Answer 2

Not sure what you want, but take a look at these events for ContextMenu and MenuItem:

ContextMenu:

http://msdn.microsoft.com/en-us/library/system.windows.controls.contextmenu_events.aspx

MenuItem:

http://msdn.microsoft.com/en-us/library/system.windows.controls.menuitem_events.aspx

I think ContextMenuOpening and ContextMenuClosing might be interesting ;)