One of the hidden gems in ASP.NET 2.0 is the new expression syntax. For example, to display the value of a setting in the AppSettings section of your web.config, you can do this: <asp:Label Text="<%$ AppSettings:AnotherSetting %>"
Notice that the value of the Text property of the Label control is set to an expression that is similar to the DataBinding syntax (<%#), but instead of a pound sign (#) it uses a dollar sign ($).
Expressions are distinguished by the expression prefix. In the above example, the prefix is AppSettings. The...