preventing multiple logins in asp.net

[The Crow]

if a user logs in, i want other logged in user with the same credentials to
log out. how can i solve this problem?

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

You could maintain a collection( hashtable? ) in Application with the
userID as key and the session ID as the value, on each request you have to
check if the current session is registered in the application as the last
session for that login, if not just logoff , if no such login exist in the
collection this is the first time, and you just add it.

cheers,