C#多線程-UI線程與工作線程<1>

前些日子,看了網上幾個例子,總結一下:

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線程

        Thread wkThread = null;//工作線程

        private void Form1_Load(object sender, EventArgs e)

        public void UpdateProgressThread() {//UI線程的具體操作,此處給一個進度條

            int i;

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

                Thread.Sleep(100);

                this.Invoke(new Action<int>(this.UpdateProgress), i);//UI設定是不能直接線上程中進行的,必須使用代理

            }

        public void UpdateProgress(int i) {//更新UI設定的具體實作

            this.progressBar1.Value = i;

        public void work() {//工作線程

            Thread.Sleep(2000);

            uiThread.Suspend();

            uiThread.Resume();

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

        private void button1_Click(object sender, EventArgs e)//添加一個按鈕,點選按鈕開始兩個線程工作

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

            uiThread.Start();

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

            wkThread.Start();

    }

}

運作即可.

這個程式不具有實際應用,因為程式的UI更新往往和工作進展相關聯,即UI線程和work線程需要互相通知對方,即兩個線程之間有資訊傳遞.