VLC_WINRT.ViewModels.MainPage.VideoLibraryViewModel.ExecuteSemanticZoom C# (CSharp) Method

        public void ExecuteSemanticZoom()
        {
#if NETFX_CORE
            var page = App.ApplicationFrame.Content as Views.MainPage;
            if (page == null) return;
            var videoColumn = page.GetFirstDescendantOfType<VideoColumn>() as VideoColumn;
            var semanticZoom = videoColumn.GetDescendantsOfType<SemanticZoom>().First() as SemanticZoom;
            var semanticZoomVertical = videoColumn.GetDescendantsOfType<SemanticZoom>().ElementAt(1) as SemanticZoom;
            var collection = videoColumn.Resources["MediaGroupedByAlphabet"] as CollectionViewSource;
            if (semanticZoom == null) return;
            try
            {
                var listviewbase = semanticZoom.ZoomedOutView as ListViewBase;
                var listviewBaseVertical = semanticZoomVertical.ZoomedOutView as ListViewBase;
                if (collection == null) return;
                // Collection or Collection View can also be null. In these cases, return.
                if (collection.View == null) return;
                if (listviewbase != null) 
                    listviewbase.ItemsSource = collection.View.CollectionGroups;
                if (listviewBaseVertical != null)
                    listviewBaseVertical.ItemsSource = collection.View.CollectionGroups;
            }
            catch { }
#endif
        }