我心依旧 通过本文主要向大家介绍了backgroundworker控件,backgroundworker,backgroundworker用法,c#backgroundworker,backgroundworker1等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
本文实例讲述了WinForm中BackgroundWorker控件用法。分享给大家供大家参考。具体如下：
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;
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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希望本文所述对大家的C#程序设计有所帮助。
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