public static void OverflowOpenPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
RibbonQAToolBar tb = (RibbonQAToolBar)o;
tb.IsMenuOpen = false;
}
private static void HasOverflowItemsPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
RibbonQAToolBar toolbar = (RibbonQAToolBar)o;
toolbar.CreateMenuItems();
}