To make changes to the properties of a list box, right-click the list box and select Properties. The properties appear in the Properties window. If you have questions about a specific property, select it, and then press F1.
You can also add conditional behaviors to
controls on your panels when a user selects or deselects items in the
list. To do this, right-click the list box, and select Selected or
Deselected, then select the desired action from the resulting submenu.
The pointer cursor changes to a hand selection cursor when it is over a
component that supports the specified conditional behavior. Select the
components on the panel that should receive the action when a user selects
an item in the list.