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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace HP
{
public partial class Form3 : Form
{
private BackgroundWorkerManage _bg = new BackgroundWorkerManage();
public Form3()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
// バックグラウンド処理を開始
_bg.Run(DoWork, Completed);
}
private void button2_Click(object sender, EventArgs e)
{
_bg.Run(DoWork, null);
}
private void button3_Click(object sender, EventArgs e)
{
string str = "ArgumentTest";
_bg.Run(DoWork, null, str);
}
private void button4_Click(object sender, EventArgs e)
{
// バックグラウンド処理をキャンセルします。
_bg.Cancel();
}
private void DoWork(object sender, DoWorkEventArgs e)
{
if (e.Argument != null)
{
Console.WriteLine(" 引数は[" + e.Argument + "]です。");
}
Console.WriteLine(" Dowork 1");
Thread.Sleep(3000);
Console.WriteLine(" Dowork 2");
if (_bg.IsCancel)
{
e.Cancel = true;
return;
}
Thread.Sleep(1000);
Console.WriteLine(" Dowork 3");
}
private void Completed(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
MessageBox.Show("途中でキャンセルしました。");
}
}
}
}
|
BackgroundWorkerManage.csです。
