CheckedComboBoxStyleSettings.ShowSelectAllItem Property

Gets or sets whether to display the Select All item. This is a dependency property.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v25.1.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public bool ShowSelectAllItem { get; set; }

VB.NET

Public Property ShowSelectAllItem As Boolean

Property Value

Type	Description
Boolean	true to display the Select All item; otherwise, false.

Remarks

Enable the ShowSelectAllItem option to to display the Select All item:

XAML

<dxe:ComboBoxEdit>
  <dxe:ComboBoxEdit.StyleSettings>
      <dxe:CheckedComboBoxStyleSettings ShowSelectAllItem="True"/>
  </dxe:ComboBoxEdit.StyleSettings>
  <dxe:ComboBoxEditItem Content="Item 1"/>
  <dxe:ComboBoxEditItem Content="Item 2"/>
  <dxe:ComboBoxEditItem Content="Item 3"/>
</dxe:ComboBoxEdit>

Use the SelectAllItemText property to rename the Select All item.

Important

If the ShowCustomItems property is set to false, the CheckedComboBox does not display the Select All item regardless of the ShowSelectAllItem setting.