使用C#的ASP.NET(倒数计时器) [英] asp.net using c#( countdown timer)

问题描述

我需要使用c#在asp.net中使用倒数计时器.因为我用在线考试系统.当我为考试设置20分钟时，页面将重定向到另一个页面，即结果页面.设置为20分钟的计时器，然后时间以递减的顺序显示19、18、17、16.

i need countdown timer in asp.net using c#. because i used in online examination system . when i set 20 mins for over the examination the page redirect to another page i.e. result page. timer like 20mins set then time show in decreasing order 19,18,17,16.

推荐答案

请看以下内容:
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 [

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

都可以阅读

Either read this[^] or pay more attention in class or ask your tutor for some help.

我这样做是2秒钟，而不是10分钟(600000毫秒):

I did this for 2 seconds instead of 10 minutes (600000 milliseconds):

Timer t = new Timer(2000);
int timerCounter = 20;
t.Elapsed += delegate(object sender, ElapsedEventArgs args)
    {
        --timerCounter;
        if (timerCounter > 0)
        {
            Console.WriteLine("Counter = " + timerCounter + ", Time is " + DateTime.Now.ToLongTimeString());
        }
        else
        {
            Console.WriteLine("Time expired, Time is " + DateTime.Now.ToLongTimeString());
            // Whatever to do after timer expires
            t.Stop();
        }
    };
t.Start();

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