AccordionControl.SelectionUnit Property

Gets or sets whether an end-user can select subitems or both subitems and root items. This is a dependency property.

Namespace: DevExpress.Xpf.Accordion

Assembly: DevExpress.Xpf.Accordion.v23.2.dll

NuGet Package: DevExpress.Wpf.Accordion

Declaration

C#

public SelectionUnit SelectionUnit { get; set; }

VB.NET

Public Property SelectionUnit As SelectionUnit

Property Value

Type	Description
SelectionUnit	A SelectionUnit enumeration value. The default is SelectionUnit.SubItemOrRootItem.

Available values:

Name	Description
SubItemOrRootItem	Both the root items and subitems can be selected.
SubItem	Only subitems can be selected.

Remarks

You can specify accordion item types an end-user can select.

Set the SelectionUnit property to:

• SelectionUnit.SubItem to allows selecting subitems only.
• SelectionUnit.SubItemOrRootItem to allow selecting both root items and subitems.

The following code sample demonstrates an AccordionControl that allows selecting subitems only:

XAML

<dxa:AccordionControl SelectionUnit="SubItem">
   <dxa:AccordionItem Header="Root Item" Glyph="{dx:DXImage Image=Image_32x32.png}"/>
   <dxa:AccordionItem Header="Root Item" Glyph="{dx:DXImage Image=Map_32x32.png}">
      <dxa:AccordionItem Header="SubItem" Glyph="{dx:DXImage Image=Map_16x16.png}"/>
      <dxa:AccordionItem Header="SubItem" Glyph="{dx:DXImage Image=Map_16x16.png}"/>
   </dxa:AccordionItem>
</dxa:AccordionControl>

The image below shows the result:

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the SelectionUnit property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

XAML

how-to-bind-the-accordioncontrol-to-data-using-the-childrenselector-property-t596779/CS/ChildrenSelector/MainWindow.xaml#L23

<Border Margin="5" Grid.Column="0" BorderBrush="Black" BorderThickness="1">
    <dxa:AccordionControl Name="accordion" SelectionUnit="SubItem" ItemsSource="{Binding MyData.Categories }"
                          SelectedItem="{Binding SelectedItem}" ChildrenSelector="{StaticResource mySelector}">

wpf-accordion-bind-to-data-hierarchicaldatatemplate/CS/HierarchicalDataTemplate/MainWindow.xaml#L20

<Border Margin="5" Grid.Column="0" BorderBrush="Black" BorderThickness="1">
    <dxa:AccordionControl x:Name="accordion" SelectionUnit="SubItem"
                          ItemsSource="{Binding MyData.Categories }" SelectedItem="{Binding SelectedItem}">