XAML - Flatten out a UI hierarchy

XAMLFlattenHierarchy

        private IEnumerable<UIElement> GetAllChildrenRecursively()
        {
            var elements = new List<UIElement>();
            this.GetAllChildrenRecursively(this, elements);

            return elements;
        }

        private void GetAllChildrenRecursively(FrameworkElement element, IList<UIElement> elements)
        {
            var children = LogicalTreeHelper.GetChildren(element);
            foreach (var child in children)
            {
                if (child is UIElement)
                {
                    elements.Add(child as UIElement);
                }

                if (child is FrameworkElement) 
                {
                    this.GetAllChildrenRecursively(child as FrameworkElement, elements);
                }
            }
        }