RadioComboBoxStyleSettings.ShowEmptyItem Property

Gets or sets whether the radio combo box displays the empty item. This is a dependency property.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v24.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public bool ShowEmptyItem { get; set; }

VB.NET

Public Property ShowEmptyItem As Boolean

Property Value

Type	Description
Boolean	true, to show the empty item; otherwise, false.

Remarks

The ComboBoxEdit control can display the empty item above its other items. When an end-user selects the empty item, the control’s EditValue is set to null.

Use the ShowEmptyItem property to control the availability of the empty item in the combo box dropdown list. The EmptyItemText property allows you to change the default empty item‘s text.

The image below illustrates the empty item with the default text.

The code sample below demonstrates how to enable the empty item.

Xaml

<dxe:ComboBoxEdit>
    <dxe:ComboBoxEdit.StyleSettings>
        <dxe:RadioComboBoxStyleSettings ShowEmptyItem="True"/>
    </dxe:ComboBoxEdit.StyleSettings>
    <dxe:ComboBoxEditItem Content="Item1"/>
    <dxe:ComboBoxEditItem Content="Item2"/>
    <dxe:ComboBoxEditItem Content="Item3"/>
</dxe:ComboBoxEdit>