C#多线程-UI线程与工作线程<1>

前些日子,看了网上几个例子,总结一下:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Threading;

//using System.Windows.Forms.Application;

namespace UIWorkTask

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        Thread uiThread=null;//UI线程

        Thread wkThread = null;//工作线程

        private void Form1_Load(object sender, EventArgs e)

        public void UpdateProgressThread() {//UI线程的具体操作,此处给一个进度条

            int i;

            for (i = 0; i < 100; i++) {

                Thread.Sleep(100);

                this.Invoke(new Action<int>(this.UpdateProgress), i);//UI设置是不能直接在线程中进行的,必须使用代理

            }

        public void UpdateProgress(int i) {//更新UI设置的具体实现

            this.progressBar1.Value = i;

        public void work() {//工作线程

            Thread.Sleep(2000);

            uiThread.Suspend();

            uiThread.Resume();

            MessageBox.Show("work thread is working ...");

        private void button1_Click(object sender, EventArgs e)//添加一个按钮,点击按钮开始两个线程工作

            uiThread = new Thread(new ThreadStart(UpdateProgressThread));

            uiThread.Start();

            wkThread = new Thread(new ThreadStart(work));

            wkThread.Start();

    }

}

运行即可.

这个程序不具有实际应用,因为程序的UI更新往往和工作进展相关联,即UI线程和work线程需要互相通知对方,即两个线程之间有信息传递.