State Management Intro by Charles Carroll

Anyone using a browser is accessing the web via HTTP. HTTP is a stateless protocol. What that means is every page fetched from the website has NO MEMORY of the last page fetched.

Whenever we devise some "tricks" so that a web page seems to remember some previous information we call that maintaining state with the user.

Keep in mind no matter how we do this there are limits. Each method may not work in some narrow situation.

A listserver exists where this is the ONLY topic discussed, see:
http://www.asplists.com/asplists/aspstatemanagement.asp

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