ASP.NET 4 Unleashed

Using the Panel Control

The Panel control enables you to work with a group of ASP.NET controls.

For example, you can use a Panel control to hide or show a group of ASP.NET controls. The page in Listing 2.29 contains a list of RadioButton controls which can be used to select your favorite programming language. The last RadioButton is labeled Other. If you select the Other radio button, the contents of a Panel control are revealed (see Figure 2.18).

Figure 2.18. Hiding and displaying controls with the Panel control.

Listing 2.29. ShowPanel.aspx

Notice that the Panel control is declared with a Visible property that has the value False. Because ...