Visual Basic 2015 Unleashed

Organizing Controls with the 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:

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<Expander Name="Expander1" Header="Expand to view controls"          Background="LightBlue">    <StackPanel>        <ComboBox Name="Combo1" Margin="10">            <!-- Add your items here...-->        </ComboBox>        <ListBox Name="List1" Margin="10">            <!-- Add your items here...-->        </ListBox>    </StackPanel></Expander>

You must use a panel, as in the preceding example, if you want to add multiple visual elements because the Expander’s Content property ...