A simple example of BackgroundWorker control usage in WinForm
- 2021-07-26 08:44:59
- OfStack
This article illustrates the usage of BackgroundWorker control in WinForm. Share it for your reference. The details are as follows:
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, " Progress :" + e.ProgressPercentage.ToString());
//progressBar.Value = e.ProgressPercentage;
}
void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
ThreadInvoke.SetMethodInvokeValue(label3, " Results :completed");
}
void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
ThreadInvoke.SetMethodInvokeValue(label3, " Results :start");
while (i < len)
{
i++;
System.Threading.Thread.Sleep(100);
ThreadInvoke.SetMethodInvokeValue(label1, " Work :" + (i * 10).ToString());
backgroundWorker.ReportProgress(i);
Application.DoEvents();
}
}
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker.RunWorkerAsync();
}
}
}
I hope this article is helpful to everyone's C # programming.