34.7. Maintaining Session Data
So much for our examination of application-level and cached data. Next, let's check out the role of per-user data. As mentioned earlier, a session is little more than a given user's ongoing interaction with a web application, which is represented via a unique HttpSessionState object. To maintain stateful information for a particular user, you can use the Session property in your web page class or in Global.asax. The classic example of the need to maintain per-user data is an online shopping cart. Again, if 10 people all log on to an online store, each individual will have a unique set of items that she (may) intend to purchase, and that data needs to be maintained.
When a new user joins to your web application, ...
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