Toolkit.TabRibbon.LayoutRoot_MouseLeave C# (CSharp) 메소드

        private void LayoutRoot_MouseLeave(object sender, MouseEventArgs e)
        {
            if (!isPinned)
            {
                PushPin.Visibility = Visibility.Collapsed;
                if (RibbonExpand == null)
                {
                    RibbonCollapse = root.Resources["RibbonCollapse"] as Storyboard;
                    RibbonExpand.Completed += RibbonExpand_Completed;
                }
                RibbonCollapse.Begin();
            }
        }