TryFindResource Silverlight

A nice hierarchical resource search in Silverlight I came across in on internet, returns null if the resource cannot be found.

public static class FrameworkElementExtensions
{
    public static object TryFindResource(this FrameworkElement element, object resourceKey)
    {
        FrameworkElement currentElement = element;

        while (currentElement != null)
        {
            object resource = currentElement.Resources[resourceKey];
            if (resource != null)
            {
                return resource;
            }

            currentElement = currentElement.Parent as FrameworkElement;
        }

        return Application.Current.Resources[resourceKey];
    }
}

Original post:  http://blog.functionalfun.net/2011/01/findresource-implementation-for.html