只使用一次定时器 [英] Using Timer only once

问题描述

我只想在主窗体初始化后 1 秒使用一次计时器.我以为下面会有一个消息框只说一次Hello World"，但实际上每秒钟都会有一个新的消息框说Hello World".

I want to use a timer only once, at 1 second after the initialization of my main form. I thought the following would have a message box saying "Hello World" just once, but actually a new message box says "Hello World" every one second.

为什么会这样?我已经把 t.Stop() 放在滴答事件中.另外，我是否需要以某种方式处理计时器以避免内存泄漏?

Why so? I had put t.Stop() in the tick event. Also, do I need to dispose the timer somehow to avoid memory leakage?

        Timer t = new Timer();
        t.Interval = 1000;                
        t.Tick += delegate(System.Object o, System.EventArgs e)
                        { MessageBox.Show("Hello World"); t.Stop(); };

        t.Start();   

请帮忙看看是否有更好的方法来做到这一点?谢谢.

Please help and show if there is a better way of doing this? Thanks.

推荐答案

Replace MessageBox.Show("Hello World");t.Stop(); 和 t.Stop();MessageBox.Show("Hello World");.因为你没有及时按下确定，计时器已经再次滴答滴答，你一直没有到达停止代码.

Replace MessageBox.Show("Hello World"); t.Stop(); with t.Stop();MessageBox.Show("Hello World");. Because you're not pressing OK in time, the timer has already ticked again and you never reached the stop code.

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