C#代码片段 在工作线程中刷新主界面线程的进度条显示

//刷新进度条
this.Invoke(new MethodInvoker(delegate() {
lbsuccess.Text = worksuccess.ToString();
lberror.Text = workfailure.ToString();
if (targetCount > 0) {
double percent = Convert.ToDouble(worksuccess + workfailure) / Convert.ToDouble(targetCount);
progressBar1.Value = Convert.ToInt16(Math.Round(percent, 2) * 100); //Math.Round按照四舍五入的国际标准 percent * 100;
lbbaifenbi.Text = progressBar1.Value.ToString() + "%";
}
}));