ASP.NET 4 Unleashed

Selecting Data

You can allow a user to select a particular row in a GridView control. This is useful when you want to build single-page Master/Details forms. For example, the page in Listing 11.3 contains two GridView controls. The first GridView displays a list of movie categories. When you select a category, the second GridView displays a list of matching movies (see Figure 11.2).

Figure 11.2. Selecting a GridView row.

Listing 11.3. SelectGridView.aspx

The first GridView has its AutoGenerateSelectButton property enabled. When this property ...