如何等待BackgroundWorker完成然后退出控制台应用程序

Question

我已经编写了一个示例控制台应用程序来使用Stackoverflow中发布的示例之一来测试backgroundworker.我有一个backgroundworker,它以main方法开头,但是如果我按下回车键,它会在操作过程中结束,因为我在main方法中写了一个console.readkey.但是我希望它等到后台工作者完成工作然后退出应用程序.这是我的代码.

class Program
{
    private static BackgroundWorker worker = new BackgroundWorker();
    private event EventHandler BackgroundWorkFinished;

    static void Main(string[] args)
    {
        worker.DoWork += worker_DoWork;
        worker.RunWorkerCompleted += worker_RunWorkerCompleted;
        worker.ProgressChanged += worker_ProgressChanged;
        worker.WorkerReportsProgress = true;
        worker.WorkerSupportsCancellation = true;

        Console.WriteLine("Starting Application...");

        worker.RunWorkerAsync();
        Console.ReadKey();
    }

    static void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
        Console.WriteLine(e.ProgressPercentage.ToString());
    }

    static void worker_DoWork(object sender, DoWorkEventArgs e)
    {
        Console.WriteLine("Starting to do some work now...");
        int i;
        for (i = 1; i < 10; i++)
        {
            Thread.Sleep(1000);
            worker.ReportProgress(Convert.ToInt32((100.0 * i) / 10));
        }

        e.Result = i;
    }

    static void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
        Console.WriteLine("Value Of i = " + e.Result.ToString());
        Console.WriteLine("Done now...");
    }
}

Answer 1

请参阅如何等待BackgroundWorker取消？发布如何在BackgroundWorker和主线程之间进行通信.

基本上,您必须使用在DoWork结束时设置的事件来表示DoWork已完成.然后在主线程中的那个事件上等待WaitOne().