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Version: 11.0.0

Expander

The expander control has a header area (always visible) and a collapsible content section that can contain a single child control.

Useful Properties

You will probably use these properties most often:

PropertyDescription
Expander.HeaderDefines what appears in the header area.

Example

<Expander VerticalAlignment="Top">
<Expander.Header>
Hidden Search
</Expander.Header>
<Grid RowDefinitions="*,*" ColumnDefinitions="150,*">
<TextBlock Grid.Row="0" Grid.Column="0"
VerticalAlignment="Center">Search</TextBlock>
<TextBox Grid.Row="0" Grid.Column="1"
Watermark="Search text" Width="200" />
<TextBlock Grid.Row="1" Grid.Column="0"
VerticalAlignment="Center">Case sensitive?</TextBlock>
<CheckBox Grid.Row="1" Grid.Column="1" />
</Grid>
</Expander>

More Information

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For the complete API documentation about this control, see here.

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View the source code on GitHub Expander.cs