XAML C# GetElementsByTagName

GetElementsByTagName.cs

/**
 * By Louy Alakkad <me@l0uy.com>
 *
 * Copied from here: http://stackoverflow.com/questions/974598/find-all-controls-in-wpf-window-by-type
 * With some modifications
 *
 * Javascript-like GetElementsByTagName function for XAML and C#
 *
 * You can use it like this:
 * var elements = GetElementsByTagName<Image>(parent);
 */

public static IEnumerable<T> GetElementsByTagName<T>(DependencyObject depObj) where T : DependencyObject
{
    if (depObj != null)
    {
        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObj); i++)
        {
            DependencyObject child = VisualTreeHelper.GetChild(depObj, i);
            if (child != null && child is T)
            {
                yield return (T)child;
            }

            foreach (T childOfChild in FindVisualChildren<T>(child))
            {
                yield return childOfChild;
            }
        }
    }
}