static void PageStage_ScaleChanged(object sender, RoutedEventArgs e)
        {
            DispatcherTimer timer = new DispatcherTimer();

            timer.Interval = new TimeSpan(0, 0, 0, 0, 50);
            if (ScaleChanged != null)
            {
                ScaleChanged(sender, e);
            }
            timer.Tick += (a, b) =>
            {
                _windowAssetShow = new windowAssetShow(AssetType.Movie, null);
                ((ControlMediaElement)sender).Pause();
                _windowAssetShow.Position = ((ControlMediaElement)sender).Position;

                _windowAssetShow.AssetPath = ((ControlMediaElement)sender).Source.OriginalString;

                _windowAssetShow.ShowDialog();
                ((ControlMediaElement)sender).btnZoomChecked = true;
                ((ControlMediaElement)sender).Position       = _windowAssetShow.Position;

                ((ControlMediaElement)sender).Play();

                timer.Stop();
            };
            timer.Start();
        }
        static void item_showAsset(UIElement item, ObservableCollection <string> liststring)
        {
            windowAssetShow windowAssetShow = new windowAssetShow(AssetType.Image, liststring);

            windowAssetShow.item = item;
            windowAssetShow.ShowDialog();
        }