Transparent Data Sources
The Employees Manager sample application we’ll be looking at is a relatively simple viewer of records that allows for pagination, sorting, and more important, insertions, deletions, and updates. Figure 7-1 shows the main application interface. (You can find the EmpMan.aspx application on the companion CD.)
Figure 7-1. The main interface for record viewer application.
When the application first loads, it performs two important tasks: it attempts to locate a particular XML file on the Web server that is known to contain the data to resume execution and, if the file is found, it reads the file’s content into the Cache ...