MARKUS

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

namespace Markus.Service

{

    public static class VisualTreeHelperEx

    {

        public static IEnumerable<T> FindLogicalChildren<T>(DependencyObject obj) where T : DependencyObject

        {

            if (obj != null)

            {

                if (obj is T)

                    yield return obj as T;

                foreach (DependencyObject child in LogicalTreeHelper.GetChildren(obj).OfType<DependencyObject>())

                    foreach (T c in FindLogicalChildren<T>(child))

                        yield return c;

            }

        }

    }

}