在Windows窗体中处理时更新标签 [英] Update Label while processing in Windows Forms

问题描述

在处理时在Windows Forms应用程序上更新标签的最佳方法是什么?

What is the best way to update a label on a Windows Forms application while processing?

我有一个循环，当用户单击按钮时，该循环会对用户系统上的文件进行一些处理.

I have a loop that does some processing to files on the user's system when the user clicks a button.

foreach (System.IO.FileInfo f in dir.GetFiles("*.txt"))
{
   // Do processing
   // Show progress bar
   // Update Label on Form, "f.Name is done processing, now processing..."
}

一些示例代码是什么?

这到底叫什么?是线程还是委托?

What exactly is this called? Is it threading or delegates?

推荐答案

一个快速解决方案是:

Label1.Text = f.Name + " is done processing, now processing...";
Label1.Refresh();

您真的想避免使用DoEvents，否则，如果用户反复按表单上的按钮，则会遇到问题.

You really want to avoid DoEvents, otherwise you'll have problems if your user repeatedly presses buttons on your form.

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