WPF的Popup自动显示隐藏

简单实现鼠标移过Popup自动显示和隐藏的功能；

在xaml.cs中实现，首先创建一个定时器，设置300ms的延时：

 1         DispatcherTimer timer;
 2 
 3         public Function1View()
 4         {
 5             InitializeComponent();
 6 
 7             timer = new DispatcherTimer();
 8             timer.Tick += timer_Tick;
 9             timer.Interval = TimeSpan.FromMilliseconds(300);
10         }

z定时器的触发函数中，隐藏Popup：

1         void timer_Tick(object sender, EventArgs e)
2         {
3             menuPopup.IsOpen = false;
4         }

Popup和目标控件的鼠标进入和离开函数：

 1         /// <summary>
 2         /// 鼠标移走
 3         /// </summary>
 4         /// <param name="sender"></param>
 5         /// <param name="e"></param>
 6         private void Border_MouseLeave(object sender, MouseEventArgs e)
 7         {
 8             timer.Start();
 9         }
10         /// <summary>
11         /// 鼠标移走
12         /// </summary>
13         /// <param name="sender"></param>
14         /// <param name="e"></param>
15         private void menuPopup_MouseLeave(object sender, MouseEventArgs e)
16         {
17             timer.Start();
18         }
19         /// <summary>
20         /// 鼠标进入
21         /// </summary>
22         /// <param name="sender"></param>
23         /// <param name="e"></param>
24         private void Border_MouseEnter(object sender, MouseEventArgs e)
25         {
26             menuPopup.IsOpen = true;
27             timer.Stop();
28         }
29         /// <summary>
30         /// 鼠标进入
31         /// </summary>
32         /// <param name="sender"></param>
33         /// <param name="e"></param>
34         private void menuPopup_MouseEnter(object sender, MouseEventArgs e)
35         {
36             menuPopup.IsOpen = true;
37             timer.Stop();
38         }

实现效果：