Visual Basic® 2010 Unleashed

Expander

The Expander control is a special kind of control container that can be expanded or collapsed and that is useful for organizing your controls. The following is an example of Expander with nested controls:

You must use a panel, as in the preceding example, if you want to add multiple visual elements because the Expander’s Content property supports just one element. You access members by simply invoking their names as if they were not nested inside the Expander. Figure 32.7 shows the Expander in action.

Figure 32.7 Implementing the Expander and nesting controls.