void scrollviewer_DoubleTapped(object sender, Windows.UI.Xaml.Input.DoubleTappedRoutedEventArgs e)
{
var img = VisualTreeUtils.FindFirstElementInVisualTree <Image>(sender as DependencyObject);
if (img == null)
{
return;
}
var point = e.GetPosition(img);
ImageZoom(point, (ScrollViewer)sender, img);
}
public void ImageZoom()
{
ImageZoom(new Point(), (ScrollViewer)AssociatedObject, VisualTreeUtils.FindFirstElementInVisualTree <Image>(AssociatedObject as DependencyObject));
}