Question

I have multidomain web application which treats users differently based on URL they use.

I am using Session[“data”] to keep information about user and starting this session with Session_Start[“data”] in Global.asax.

All works fine but I would like to know what happens after inactivity. After certain time session will timeout. If that happens is Global.asax treating this as new user and will again start Session_Start for this user?

And will Session[“data”] get updated with every page load/reload? Or because it starts just once and will timeout in some exact time?

I tried to make this question as clear as possible.

Thanks.

Answer 1

Session will renew/keep-alive everytime the server gets hit by that user.You set the timeout in the web config file and it is a sliding value, so it restarts again everytime there is a server request.

something like this:

<configuration>
  <sessionstate 
      mode="inproc"
      cookieless="false" 
      timeout="20" />
</configuration>

When the session times out, the next time there is a request, the Session_Start will execute. If you are accessing Session[data] from anywhere else in the code, you should check to make sure it is not null as it will throw a NullReferenceException if the session has timed out and you are trying to access it.