private void ImagesView_LayoutUpdated(object sender, object e)
{
if (VSP == null)
{
VSP = ImagesView.ChildAt <VirtualizingStackPanel>(0, 0, 0, 0, 0, 0, 1);
}
if (VSP != null && TryResetZoom(ImagesView.SelectedItem))
{
ImagesView.LayoutUpdated -= ImagesView_LayoutUpdated;
}
}
private void ImagesView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
VSP = ImagesView.ChildAt <VirtualizingStackPanel>(0, 0, 0, 0, 0, 0, 1);
if (VSP == null)
{
// Items has not yet been visualized yet. We'll wait.
ImagesView.LayoutUpdated += ImagesView_LayoutUpdated;
}
else if (e.AddedItems.Any())
{
if (!TryResetZoom(e.AddedItems.First()))
{
// Cannot reset, item is not yet visualized
ImagesView.LayoutUpdated += ImagesView_LayoutUpdated;
}
}
}