/// <summary>
/// "activeDescendantChange" event handler for menu's
/// Focus Manager.
/// </summary>
protected void _onActiveDescendantChange(object @event, NodeMenuNav menuNav){}
/// <summary>
/// "activeDescendantChange" event handler for menu's
/// Focus Manager.
/// </summary>
protected void _afterActiveDescendantChange(object @event, NodeMenuNav menuNav)
{
}