public static Visual FindDescendantByType(Visual element, Type type, bool specificTypeOnly)
{
if (element == null)
{
return(null);
}
if (specificTypeOnly ? (element.GetType() == type)
: (element.GetType() == type) || (element.GetType().IsSubclassOf(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 = VisualTreeHelperEx.FindDescendantByType(visual, type, specificTypeOnly);
if (foundElement != null)
{
break;
}
}
return(foundElement);
}
public static T FindDescendantByType <T>(Visual element) where T : Visual
{
Visual temp = VisualTreeHelperEx.FindDescendantByType(element, typeof(T));
return((T)temp);
}
public static Visual FindDescendantByType(Visual element, Type type)
{
return(VisualTreeHelperEx.FindDescendantByType(element, type, true));
}