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  [Collapse]DevExpress.Xpf.Editors.Settings
   [Expand]BarCodeEditSettings Class
   [Collapse]BaseEditSettings Class
     BaseEditSettings Members
    [Collapse]BaseEditSettings Properties
      AllowNullInput Property
      DisableExcessiveUpdatesInInplaceInactiveMode Property
      DisplayFormat Property
      DisplayTextConverter Property
      FlowDirection Property
      HorizontalContentAlignment Property
      MaxWidth Property
      NullText Property
      NullValue Property
      ShouldDisableExcessiveUpdatesInInplaceInactiveMode Property
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    [Expand]BaseEditSettings Events
    [Expand]BaseEditSettings Methods
   [Expand]ButtonEditSettings Class
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    EditSettingsHorizontalAlignment Enumeration
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    PopupColorEditDisplayMode Enumeration
   [Expand]PopupColorEditSettings Class
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   [Expand]ProgressBarEditSettings Class
   [Expand]RatingEditSettings Class
   [Expand]SparklineEditSettings Class
   [Expand]SpinEditSettings Class
   [Expand]TextEditSettings Class
   [Expand]ToggleSwitchEditSettings Class
   [Expand]TrackBarEditSettings Class
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 End-User Documentation

BaseEditSettings.AllowNullInput Property

Gets or sets whether end-users can set the editor's value to a null reference by pressing the CTRL+DEL or CTRL+0 key combinations. This is a dependency property.

Namespace:DevExpress.Xpf.Editors.Settings
Assembly:DevExpress.Xpf.Core.v17.1.dll

Expanded Syntax

Property value

Type: Boolean
true to allow null input by pressing the CTRL+DEL or CTRL+0 key combinations; otherwise, false.

Expanded Remarks

If the AllowNullInput property is set to true, end-users can set the editor's value to a null reference by pressing the CTRL+DEL or CTRL+0 key combinations. If the NullValue property is specified, its value is assigned to the editor's value. Otherwise, the editor's value is set to null (Nothing in Visual Basic).

Note

The CTRL + 0 key combination does not work when using a French or German keyboard.

Note

By default, if an end-user clears the text displayed within the edit box, the BaseEdit.EditValue property is set to a null reference. The AllowNullInput property is not in effect in this instance.

Expanded See Also

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