WinForm中BackgroundWorker控件用法簡略實例。本站提示廣大學習愛好者:(WinForm中BackgroundWorker控件用法簡略實例)文章只能為提供參考,不一定能成為您想要的結果。以下是WinForm中BackgroundWorker控件用法簡略實例正文
本文實例講述了WinForm中BackgroundWorker控件用法。分享給年夜家供年夜家參考。詳細以下:
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, "進度:" + e.ProgressPercentage.ToString()); //progressBar.Value = e.ProgressPercentage; } void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { ThreadInvoke.SetMethodInvokeValue(label3, "成果:completed"); } void backgroundWorker_DoWork(object sender, DoWorkEventArgs e) { ThreadInvoke.SetMethodInvokeValue(label3, "成果:start"); while (i < len) { i++; System.Threading.Thread.Sleep(100); ThreadInvoke.SetMethodInvokeValue(label1, "任務:" + (i * 10).ToString()); backgroundWorker.ReportProgress(i); Application.DoEvents(); } } private void button1_Click(object sender, EventArgs e) { backgroundWorker.RunWorkerAsync(); } } }
願望本文所述對年夜家的C#法式設計有所贊助。