摘要：
pop.IsMouseOver）｛if（tileMore！=null）｛if（！
var tileMore = new Tile { Height = 40, Width = 85, Background = new SolidColorBrush(Color.FromRgb(120, 240, 120)), Title = "更多...", }; tileMore.SetResourceReference(FrameworkElement.StyleProperty, "KentTile"); Popup popup = new Popup { //StaysOpen = false, PopupAnimation = PopupAnimation.Slide, PlacementTarget = tileMore, Placement = PlacementMode.Bottom, AllowsTransparency = true }; //pop里面生成的内容，本例是StackPannel中包括一个textbox WrapPanel stackPanel = new WrapPanel { Width = tileMore.Width * 5, Background = Brushes.Transparent }; stackPanel.Children.Add(/*sth to show*/); popup.Child = stackPanel; tileMore.MouseEnter += (sender, e) => { popup.IsOpen = true; }; tileMore.MouseLeave += (s, e) => { if (timerCloseRecentPopup == null) { timerCloseRecentPopup = new DispatcherTimer(); timerCloseRecentPopup.Interval = new TimeSpan(0, 0, 1); timerCloseRecentPopup.Tag = popup; timerCloseRecentPopup.Tick += closePopup; } timerCloseRecentPopup.Stop(); timerCloseRecentPopup.Start(); }; popup.MouseLeave += (s, e) => { if(timerCloseRecentPopup == null) { timerCloseRecentPopup = new DispatcherTimer(); timerCloseRecentPopup.Interval = new TimeSpan(0, 0, 1); timerCloseRecentPopup.Tag = popup; timerCloseRecentPopup.Tick += closePopup; } timerCloseRecentPopup.Stop(); timerCloseRecentPopup.Start(); };
/// <summary> /// 定时关闭 更多 popup窗口 /// </summary> private DispatcherTimer timerCloseRecentPopup; private void closePopup(object state,EventArgs e) { Popup pop = timerCloseRecentPopup.Tag as Popup; if(pop == null) { //todo timer里面的Assert没有对话框出来 Debug.Assert(true,"pop==null"); return; } Tile tileMore = pop.PlacementTarget as Tile; if (!pop.IsMouseOver ) { if(tileMore != null) { if(!tileMore.IsMouseOver) { pop.IsOpen = false; timerCloseRecentPopup.Stop(); } } else { pop.IsOpen = false; timerCloseRecentPopup.Stop(); } } }