prevent multiple login for same username in C#

Gowtham Raj R

11y18.6k.NET

prevent multiple login for same username in asp .net .

And also from any browser . (If i close the tab mean Without Log out)

I need Help .From u .Kindly Share u r Ideas.

10 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nanhe Siddique11y ago
read this link

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

http://www.nullskull.com/articles/20030416.asp

it may help you
0
Upendra Pratap Shahi11y ago
You can do this on updating flag in database when broser closed using javascript and webmethod
0
Gowtham Raj R11y ago
ok
0
Shuvojit Halder11y ago
I do not have any link.but i have use it in my project, that was my idea.
0
Gowtham Raj R11y ago
U have any LINk for reference Belong to it ..!!!!!!
0
Shuvojit Halder11y ago
in this case you have to use cookie.This cookie details you have to save in database and check before login accordingly change your status.
0
Gowtham Raj R11y ago
Thanks for Share u r idea.....But i cant get it clearly
0
Upendra Pratap Shahi11y ago
You have to use a authentication when user logged in with their account then use a flag in database and always check this if user again login then show message to user , they are already login and ask him for previous session logged out and create new session.

and also read below articles :

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

http://stackoverflow.com/questions/2599118/in-asp-net-site-how-to-prevent-multiple-logins-of-same-user-id

http://stackoverflow.com/questions/15903574/when-the-same-user-id-is-trying-to-log-in-on-multiple-devices-how-do-i-kill-the

http://geekswithblogs.net/Frez/archive/2010/05/17/preventing-a-user-from-having-multiple-concurrent-sessions.aspx

http://www.codeproject.com/Questions/128494/Prevent-multiple-login-in-asp-net

____________________________
if this worked for you kindly accept the answer.
0
Gowtham Raj R11y ago
Ya Nice idea . But in this (i faced one issuse if i close directly on tab without SIGN OUT) ..!!!!!!!!
0
Shuvojit Halder11y ago
Maintain a flag in database; upon every login/out update the flag. For instance, upon every authentication request you can reject the login request if the flag is already true.
0