非法跨线程操作错误[重复]

Question

可能重复：
Help needed for 'cross-thread operation error' in C#
Solve a cross-threading Exception in WinForms

我尝试在 foreach 循环中添加进度条

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
    foreach (...)
    {
        ...
        i++;
        backgroundWorker1.ReportProgress(100 * i / rcount);
        Thread.Sleep(100);
    }
    this.close();
}

现在我有一个非法的跨线程操作错误 this.close(); 线

我该如何解决？

Answer 1

在ui线程中运行命令：

How to update the GUI from another thread in C#?

this.Invoke((MethodInvoker)delegate {
    this.close();
});