stuck in the middle with view

 public IEnumerable<DependencyObject> ScanElementsOnMatch(IElementReference elementReference, DependencyObject viewToSearchIn)
        {
            string elementReferenceType = elementReference.Type.Description.ToLower();
            int childrenCount = 0;
            Application.Current.Dispatcher.Invoke(() => { childrenCount = VisualTreeHelper.GetChildrenCount(viewToSearchIn); });
            for (var i = 0; i < childrenCount; i++)
            {
                DependencyObject child = null;
                Application.Current.Dispatcher.Invoke(() => { child = VisualTreeHelper.GetChild(viewToSearchIn, i); });
                foreach (DependencyObject meuk in ScanElementsOnMatch(elementReference, child))
                {
                    yield return meuk;
                }
            }
            yield return viewToSearchIn;
        }