其中C＃计时器？ [英] Which C# Timer?

问题描述

我正在写一个类，其中将包括一个定时器（关键可能不是0被初始化，它可能会开始已经过去了），类包括的方法开始，暂停，恢复和停止/完成。我所知道的多个定时器在C＃中，我可以使用，即System.Timers.Timer的，然而我不知道，如果这一个让我开始计时以predefined逝去的身影。

I'm writing a class that will include a timer (which crucially may not be initialized at 0, it may start already elapsed), and the class will include methods to Start, Pause, Resume and Stop/Complete. I'm aware of a number of timers in C# that I can use, i.e. System.Timers.Timer, however I'm not sure if this one lets me start the timer at a predefined elapsed figure.

什么是最适合这个场景？

What is the best for this scenario?

推荐答案

不使用的 System.Windows.Forms.Timer - 这一次将上运行的代理形式的UI线程，这可能不是你想要的。

Don't use System.Windows.Forms.Timer - This one will run the delegate on a form's UI thread, which is probably not what you want.

System.Timers.Timer的 从 System.ComponentModel.Component ，因此它着眼于设计图面。

System.Timers.Timer derives from System.ComponentModel.Component, and so its geared towards a design surface.

System.Threading.Timer 是最好的一个线程池后台任务。

System.Threading.Timer is best for background tasks on a thread pool.

System.Threading.Timer 满足您的所有需求（假设你试图在运行的线程池代表。

System.Threading.Timer satisfies all your requirements (assuming you're trying to run delegates on the threadpool.

public void MyCallback(object o) { ... }
int timeToStart = 1000;
int period = 2000;

//fire the delegate after 1 second, and every 2 seconds from then on
Timer timer = new Timer(MyCallback, null, timeToStart, period);

//pause
timer.Change(Timeout.Infinite, Timeout.Infinite);

//resume
timer.Change(timeToStart, period);

//stop
timer.Dispose();

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