Tracking Logged in User

[Harman]

Hi,

I have an ASP.NET application in which if a user has logged in with a set of
credentials then i do not
want to allow another user to log-in with the same credentials.

For this i am thinking of keeping a flag which would let me know if the user
has already logged-in or not.

Problem is i do not know how and where would i clear this flag. What if the
user closes his/her browser?

Is their a specific event fired on the server using which i can clear this
flag?

Is their some other alternate approach i can use?

Please help.

Thanks & Regards,
Harman.

 

[Joel Leong]

this will help you. Have a look

http://www.eggheadcafe.com/articles/20030418.asp