TraverseTree

gistfile1.cs

        public static IEnumerable<T> TraverseTree<T>(this T parent, Func<T, IEnumerable<T>> getChildren)
        {            
            yield return parent;
            foreach (var child in getChildren(parent))
            {
                foreach (var item in child.TraverseTree(getChildren))
                {
                    yield return item;
                }
            }
        }