static InRibbonGallery()
{
Type type = typeof(InRibbonGallery);
ToolTipService.Attach(type);
PopupService.Attach(type);
ContextMenuService.Attach(type);
DefaultStyleKeyProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(type));
StyleProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(null, new CoerceValueCallback(OnCoerceStyle)));
SelectedItemProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(null, CoerceSelectedItem));
}