MULTIPLE LOGIN PROBLEM

hello

you can add a extra field in login table which work like a flag.

when a user logged in, it convert to 1 and when logout goes to 0.

another way to store login detail in global application file, and check at time of ligin whether another session is exist or not, but only when your loged-in users are limited.

otherwise your application may slow .


first way is better for you., and you need to write a login that if a person directly close browser then how you change flag 1 to 0.

for that you can check a perticular time(eg. 20 minut), if there is any action is done by user then flag is 1 otherwise it goes to 1 and user automatically logout.


mark as answered if helpfull

thanks

For that you need to maintain the logged-in user SessionId in sql server. And from that you can easily check that user already logged-in or not.

Session Management (OutProc - SQL Server)

Note:You need to create ASPState Database for maintaining loggedin user sessions.

Hope this will help you to solve your problem.