Fluent.InRibbonGallery.OnQuickAccessOpened C# (CSharp) Method

        void OnQuickAccessOpened(object sender, EventArgs e)
        {

            for (int i = 0; i < Filters.Count; i++) quickAccessGallery.Filters.Add(Filters[i]);
            quickAccessGallery.SelectedFilter = SelectedFilter;
            quickAccessGallery.DropDownClosed += OnQuickAccessMenuClosed;
            UpdateLayout();
            Dispatcher.BeginInvoke(DispatcherPriority.Render, ((ThreadStart)(() =>
               {
                   Freeze();
               }
               )));
        }