ASP.NET中的计时器实现 [英] timer implementation in asp.net

问题描述

嗨！
如何在在线考试系统中实现计时器.

Hi!
How can I implement a timer in an online examination system.

Thanks!

推荐答案

您可以使用Timer控件.

看看这些:
JavaScript计时器 [ Ajax计时器控件 [ Ajax计时器控件-2 [ MSDN:计时器控件概述 [

You can use Timer control for it.

Look at these:
Javascript timers[^]
Ajax Timer control[^]
Ajax Timer control - 2[^]
MSDN: Timer Control Overview[^]

计时器也可以在ClientSide上使用以下命令代码:

Timer can also be used at ClientSide using the following Code:

var _timer;
function StartTimer() {
    if (_timer == null) {
        var timeInterval = document.getElementById("hdnTimeInterval").value;
        var timeValue = document.getElementById(timeInterval).value;
        if (timeValue != null || timeValue != undefined) {
            _timer = window.setInterval(EndTimer, timeValue);
        }
    }
}

function EndTimer() {
    if (_timer != null) {
        window.clearInterval(_timer);
        _timer = null;
    }
}

hdnTimeInterval-将是您的时间间隔(以毫秒为单位)

window.setInterval-用于在达到设置的时间间隔时调用函数.
在上述情况下，我调用了EndTimer函数来结束计时器.

希望这对您有所帮助.

hdnTimeInterval - will be your time interval in milliseconds

window.setInterval - Is used to call a function on reaching the set time interval.
In the above case I have called EndTimer function to end the timer.

Hope this will be useful.

DaniWeb文章为您提供了很好的参考. http://www.daniweb.com/web-development/aspnet/threads/39568/asp.net-timer-control [ ^ ]

DaniWeb article is a good reference for you. http://www.daniweb.com/web-development/aspnet/threads/39568/asp.net-timer-control[^]

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