UI界面:
<Window x:Class="InheritDemo.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300">
<Grid>
<StackPanel>
<Label MouseEnter="Label_MouseEnter" MouseLeave="Label_MouseLeave">test1</Label>
</StackPanel>
</Grid>
</Window>
后端代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Threading; namespace InheritDemo
{
/// <summary>
/// Window1.xaml 的交互逻辑
/// </summary>
public partial class Window1 : Window
{
private Thread myThread = null;//定义线程
private delegate void MyDelegate(Object para);//定义委托
public Window1()
{
InitializeComponent();
}
/// <summary>
/// 鼠标移入启动线程(继续挂起线程)
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Label_MouseEnter(object sender, MouseEventArgs e)
{
if (myThread == null)//启动线程
{
myThread = new Thread(ThreadMethod);
myThread.IsBackground = true;//后台线程
myThread.Start(sender);
}
else { myThread.Resume(); }//继续挂起线程
}
/// <summary>
/// 鼠标移出挂起线程
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Label_MouseLeave(object sender, MouseEventArgs e)
{
if (myThread != null) { myThread.Suspend(); }//挂起线程
}
/// <summary>
/// 线程事件调用委托
/// </summary>
/// <param name="para"></param>
private void ThreadMethod(object para)
{
MyDelegate myDelegate = new MyDelegate(DelegateMethod);
while (true)
{
this.Dispatcher.BeginInvoke(myDelegate, para);//调用委托
Thread.Sleep();//休眠1s
}
}
/// <summary>
/// 委托事件获取当前时间
/// </summary>
/// <param name="para"></param>
private void DelegateMethod(object para)
{
Label lbl = (Label)para;
lbl.Content = DateTime.Now.ToString();
} }
}