Microsoft.Windows.Controls.Ribbon.RibbonComboBox.CloneLayoutUpdated C# (CSharp) Method

        private void CloneLayoutUpdated(object sender, EventArgs e)
        {
            Rectangle rect = (Rectangle)SelectionBoxItem;
            rect.Width = _clonedElement.RenderSize.Width;
            rect.Height = _clonedElement.RenderSize.Height;

            VisualBrush visualBrush = (VisualBrush)rect.Fill;
            visualBrush.Viewbox = new Rect(_clonedElement.RenderSize);
            visualBrush.Viewport = new Rect(_clonedElement.RenderSize);
        }