Preparation for Cache and State

A proper discussion of cache and state management will be best served by first revisiting the topics of application-level events and page-level events. Do you recall the discussions regarding page-level events and application-level events in Chapter 13? Feel free to revisit that earlier chapter for a brief review.

Tip  

The ASP.NET application/session-level events and methods are commonly accessed in the Global.asax file. You will see the Global.asax file in the VS .NET IDE Solution Explorer window.

For your convenience, I have included two figures here that were both previously shown in Chapter 13. Figure 15-1 shows page-level events that occur to satisfy an HTTP page request. Figure 15-2 shows events that occur at the application/session level.

Figure 15-1: Page-level events raised in order to satisfy an HTTP page request

Please take a moment to review Figures 15-1 and 15-2. You will refer to these figures during the state and cache management discussions that follow.

Figure 15-2: Application/session-level events that are raised in order to satisfy an HTTP page request