如何计算在asp.net中使用timespan完成在线考试所需的时间 [英] how to calculate time taken to complete the online exam using timespan in asp.net

问题描述

我已经抓住了在page_load事件中开始考试的时间。

i have captured the time when examination was started in page_load event.

DateTime ExmStartTym = DateTime.Now();

考试结束时我想计算考生的时间。

这里我正在使用TimeSpan Class对象来做这个..

请帮我这样做...

when exam ends i want to calculate the time the examinee has taken.
here i am using TimeSpan Class object to do this..
please help me to do this...

protected void btnend_Click(object sender, EventArgs e)
   {
       try
       {
           UpdateAnswers();
           TimeSpan timeTkn =
           Response.Redirect("~/examend.aspx?totQn='"+lblTotQns.Text+"'&timeTkn='"++"'");
       }
       catch (Exception)
       {

       }
   }

推荐答案

我完成了c #Windows表单应用程序我希望这对你有所帮助

i done it c# Windows form application i hope this will helpful for you

/* When click on start button */
DateTime from = DateTime.Now;

/* when click on end button */
DateTime to = DateTime.Now;

/* total time */
TimeSpan total = to - from ;

string totalime = to.ToString("t");

/* In seconds  */
string totaltime = total.TotalSeconds.ToString();

如果你想在几分钟或几小时内有不同的方法，如totalminutes等

If you want in minutes or hours there is different methods like totalminutes etc

简单：

Simple:

Timespan diff = dateTimeEnd - dateTimeStart;
string timeTaken = string.Format("{0} hours and {1} minutes", diff.Hours + diff.Days * 24, diff.Minutes);

在考试开始时获取开始时间：



例如：

Get the Start time at beginning of exam:

eg:

TimeSpan examStartTime = DateTime.Now.TimeOfDay();

当结束按钮是点击，再次获取当前时间：



例如：

When the End button is clicked, get the current time again:

eg:

TimeSpan examEndTime = DateTime.Now.TimeOfDay();

然后使用TimeSpan通过减去结束时间的开始时间来计算差异：



例如：

Then use TimeSpan to work out the difference by substracting the start time from the end time:

eg:

TimeSpan duration = examEndTime.Subtract(examStartTime);

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