如何检查ceratin一段时间内variant的值没有变化? [英] How to check the value of varial haven't changed for a ceratin period of time?

问题描述

大家好！

我需要检查变量的值是否在固定的时间段内(例如2秒)已更改或为常量(允许轻微变化).

我想到了运行一个并行线程，该线程在一定的sleep()持续时间后仍会检查变量，但会使应用程序变慢.

还有其他想法吗?

谢谢！

Hi Every.One!

I need to check the value of a variable for if it has changed or is constant(slight variation allowed) in fixed duration of time(say 2sec).

I thought of running a parallel thread that keeps checking the variable after a certain sleep() duration but that slows down the application.

Any other idea?

Thanks!

推荐答案

我想您可以使用计时器.此计时器不应减慢您的应用程序的速度:

http://msdn.microsoft.com/en-us/library/system.threading. timer.aspx [ ^ ]

但是为什么要这样呢?
使用一个在值更改时(变化大于x％时)触发事件的属性难道不是很容易吗?

I guess you could use a timer. This timer shouldn''t slow your application:

http://msdn.microsoft.com/en-us/library/system.threading.timer.aspx[^]

But why this approach?
Isn''t it easier to use a property which fires an event when the value changes (when variation is more than x%)?

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