timer control in asp.net

[yoshitha]

HI,

I have a doubt .

I am developing an application that is conducting test for the candidates.
now my doubt is test duration is 30 min.i am displaying the questions
randomly it is working well.
now i need to check the duration i have to use timer control on the page.
how to use and how to caliculate the remaing time period how much time
left,etc.or any alternative plz specify


plz give me help.

Regards,
Krishna.

 

[JohnFol]

Hi Krishna, the timer has the ability to raise events, such as 30 minutes
before the "Test Ended" code kicks in. What you probably want is a variable
that holds the exact time the Timer's .Start was called.

For example
Dim dtStartTime As Date

dtStartTime = Now.AddMinutes(30)

Me.TextBox1.Text = dtStartTime.Subtract(Now).ToString

 

[JohnFol]

Appologies, this is probably true in VB.Net, but not sure if applicable to
ASP.Net.

 

[Steve C. Orr [MVP, MCSD]]

You'll need to use some client side script for the timer.
Here's an example that uses the javascript setTimeout function.
http://www.crowes.f9.co.uk/Javascript/timer.htm

 

[Lucas Tam]

HI,

I have a doubt .

I am developing an application that is conducting test for the
candidates. now my doubt is test duration is 30 min.i am displaying
the questions randomly it is working well.
now i need to check the duration i have to use timer control on the
page. how to use and how to caliculate the remaing time period how
much time left,etc.or any alternative plz specify

You'll need a mix of technologies.

1. Client side Javascript to show the remaining time and to stop the
test if the time runs out.

2. Server side validation to ensure that the javascript was not bypassed
- so the initial start time must be logged somewhere - preferably in a
database or a session variable.