BackgroundWorker的应用

BackgroundWorker 可以用于对控制进度条的进度，先new一个

BackgroundWorker bWork = new BackgroundWorker();

bWork.WorkerSupportsCancellation = true;//设置能够取消
bWork.WorkerReportsProgress = true;//是否报告进度

接下来就是2个事件，dowork 执行操作，  

//接受进展，设置进度条
void bWork_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            this.progressBar1.Value = e.ProgressPercentage;
        }

        void bWork_DoWork(object sender, DoWorkEventArgs e)
        {
            int i = 0;
            while (i <= 100)
            {
                if (bWork.CancellationPending)
                {
                    e.Cancel = true;
                    break;
                }
                bWork.ReportProgress(i++);//报告进展
                Thread.Sleep(100);
            }
        }