C# 仅在延迟时间后执行方法
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Execute a method after delay on time only
提问by MTA
I'm using this method to call another method every 60 seconds:
我正在使用此方法每 60 秒调用一次另一个方法：
Timer updateTimer = new Timer(testt, null,
new TimeSpan(0, 0, 0, 0, 1), new TimeSpan(0, 0, 60));
It is possible to call this method only once after delay of 1 millisecond?
是否可以在延迟 1 毫秒后仅调用一次此方法？
采纳答案by Jon Skeet
Assuming this is a System.Threading.Timer, from the documentation for the constructor's final parameter:
假设这是一个System.Threading.Timer, 来自构造函数的最终参数的文档：
period
The time interval between invocations of the methods referenced by callback. Specify negative one (-1) milliseconds to disable periodic signaling.
period
回调引用的方法调用之间的时间间隔。指定负一 (-1) 毫秒以禁用定期信号。
So:
所以：
Timer updateTimer = new Timer(testt, null,
TimeSpan.FromMilliseconds(1), // Delay by 1ms
TimeSpan.FromMilliseconds(-1)); // Never repeat
Is a delay of 1ms really useful though? Why not just execute it immediately? If you're really just trying to execute it on a thread-pool thread, there are better ways of achieving that.
1ms 的延迟真的有用吗？为什么不立即执行呢？如果你真的只是想在线程池线程上执行它，那么有更好的方法来实现这一点。
回答by syedmoulaali
System.Timers.Timer aTimer = new System.Timers.Timer(10000);
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
// Set the Interval to 60 seconds (60000 milliseconds).
aTimer.Interval = 60000;
//for enabling for disabling the timer.
aTimer.Enabled = true;
private void OnTimedEvent(object source, ElapsedEventArgs e)
{
//disable the timer
aTimer.Enabled = false;
Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
}
