public static Visual GetDescendantByType(Visual element, Type type)
{
if (element == null)
{
return null;
}
if (element.GetType() == type)
{
return element;
}
Visual foundElement = null;
if (element is FrameworkElement)
{
(element as FrameworkElement).ApplyTemplate();
}
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(element); i++)
{
Visual visual = VisualTreeHelper.GetChild(element, i) as Visual;
foundElement = GetDescendantByType(visual, type);
if (foundElement != null)
{
break;
}
}
return foundElement;
}