on session start event

I'm building a web application: some pages will be accessible by non logged-in users (demo and sign-up pages) and others will only be accessible by logged-in users (actual application). In the global.asax file, I'm currently handling the session start event by loading some variable from a query that's based on the 开发者_如何学运维UserID. What will happen when a non-logged in user looks at a page? I guess my question is really about how to handle the session start event when it's a logged-in user, when it's not and when a user logs in. I want a certain number of queries to run only once per session, after the user logged in.

Thanks.

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I would suggest to implement Forms-Based Authentication, instead of to handle authentication via session. An example can be obtained from here:

http://support.microsoft.com/kb/301240

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Don't confuse "login session" with "session state". Session state has nothing to do with whether the user is logged in.

If you want some queries run when the user logs in, you should run them when the user logs in, not in Session_Start.