C#Windows窗体处理单击垃圾邮件 [英] C# windows forms handle click spam

问题描述

我有一个包含许多用户控件和每个按钮的应用程序，每个按钮都有一个OnClick事件，该事件会做一些重要的事情，然后发送给新的用户控件.

I have an app with many user controls and many buttons on each, each button has an OnClick event which does some important stuff and then sends to a new user control.

问题出在用户真正快速单击多次时，事件代码在退出到新的用户控件之前被执行了多次，从而引起了问题.

The problem comes when the user clicks really fast multiple times, the event code gets executed more than once before exitting to a new user control, causing problems.

我当前的解决方案是在事件处理程序的第一行禁用按钮，但是对每个窗口和处理程序执行此操作都会很麻烦，我该怎么办?

My current solution is to disable the button on the very first line of the event handler, but doing this to every window and handler would be troublesome, what can I do?

从Button派生并重写OnClick事件是否是一个好的解决方案，因此它始终会检查工作"变量，如果为true，则不会启动该事件?像这样:

Would it be a good solution to derive from Button, and override the OnClick event so it always does a check for a "working" variable, and if it is true, it doesnt start the event ? Something like:

public class MyButton : Button
{
private static bool isWorking = false;

protected override void OnClick(EventArgs e)
{
    if (!isWorking)
    {
        isWorking = true;
        base.OnClick(e);
        isWorking = false;
    }
    //Else do nothing
}

}

推荐答案

您可以使用一些 timeStamp 来延迟两次单击之间的时间:

You can use some timeStamp to delay between 2 clicks:

DateTime timeStamp;
//this will handle the clicks with the allowed interval being 0.5 second
//Note that a tick is equal to 1/10,000,000 of second.
private void click_Handler(object sender, EventArgs e) {
   if ((DateTime.Now - timeStamp).Ticks < 5000000) return;
   timeStamp = DateTime.Now;
   //your code goes here ....
}

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