BackgroundWorker异步更新界面

来源：互联网发布：卖家开通淘宝客要求编辑：程序博客网时间：2024/06/05 03:01

BackgroundWorker类似于线程，但又不太一样，因为线程不可以直接更新界面，而BackgroundWorker可以。代码如下

 private void buttonTest_Click(object sender, EventArgs e)        {            BackgroundWorker worker = new BackgroundWorker();            worker.WorkerReportsProgress = true;            worker.DoWork += Bw_DoWork;            worker.ProgressChanged += Bw_ProgressChanged;            worker.RunWorkerAsync();        }        private void Bw_ProgressChanged(object sender, ProgressChangedEventArgs e)        {            labelProcess.Text = e.ProgressPercentage.ToString();        }        private void Bw_DoWork(object sender, DoWorkEventArgs e)        {            var worker = sender as BackgroundWorker;            for (int i = 0; i < 100; i++)            {                worker.ReportProgress(i);                Thread.Sleep(100);            }        }

结果如下图

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