BackgroundWorker控件的使用代码,CSharp代码库,德仔网

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【CSharp】 BackgroundWorker控件的使用

作者:炳炎 / 发布于2015/1/26/ 467


	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;

	namespace WinFormApp
	{
	 public partial class Form2 : Form
	 {
	 BackgroundWorker backgroundWorker;
	 int i = 0;
	 int len = 100;

	 public Form2()
	 {
	 InitializeComponent();

	 backgroundWorker = new BackgroundWorker();
	 backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker_DoWork);
	 backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgroundWorker_RunWorkerCompleted);
	 backgroundWorker.ProgressChanged += new ProgressChangedEventHandler(backgroundWorker_ProgressChanged);
	 backgroundWorker.WorkerReportsProgress = true;

	 }

	 void backgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
	 {
	 ThreadInvoke.SetMethodInvokeValue(label2, "进度:" + e.ProgressPercentage.ToString());
	 //progressBar.Value = e.ProgressPercentage;
	 }

	 void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
	 {
	 ThreadInvoke.SetMethodInvokeValue(label3, "结果:completed");
	 }

	 void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
	 {
	 ThreadInvoke.SetMethodInvokeValue(label3, "结果:start");
	 while (i < len)
	 {
	 i++;
	 System.Threading.Thread.Sleep(100);
	 ThreadInvoke.SetMethodInvokeValue(label1, "工作:" + (i * 10).ToString());
	 backgroundWorker.ReportProgress(i);
	 Application.DoEvents();
	 }
	 }

	 private void button1_Click(object sender, EventArgs e)
	 {
	 backgroundWorker.RunWorkerAsync();

	 }

	
	 }
	}

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