/// <summary>
/// 当应用程序开始时创建实行操作的后台工作.
/// </summary>
protected void Application_Start(object sender, EventArgs e)
{
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += new BackgroundWorker.DoWorkEventHandler(worker_DoWork);
worker.RunWorker(null);
// 后台工作是应用程序级的,
// 它将继续工作并被所有用户共享.
Application["worker"] = worker;
}
/// <summary>
/// 当按钮单击时创建一个执行后台工作的操作.
/// </summary>
protected void btnStart_Click(object sender, EventArgs e)
{
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += new BackgroundWorker.DoWorkEventHandler(worker_DoWork);
worker.RunWorker(txtParameter.Text);
// 这里需要会话模式为"InProc"以保持后台工作运行.
Session["worker"] = worker;
// 启用定时器更新操作状态.
Timer1.Enabled = true;
}