.NET Framework 4.5.2+
.NET Framework 4.5.2+
.NET Standard 2.0+
.NET Core 3.0+

ParametrizedAction.NullValuePrompt Property

Specifies the default text that is displayed in the Parametrized Action’s control.

Namespace: DevExpress.ExpressApp.Actions

Assembly: DevExpress.ExpressApp.v21.1.dll


public string NullValuePrompt { get; set; }

Property Value

Type Description

A string specifying the default text for the Parametrized Action’s control.


Gets or sets the text displayed within the editor representing the current Parametrized Action, when the editor’s value is null.

In Windows Forms applications:


In ASP.NET Web Forms applciations:


By default, this property is set to the value of the IModelAction.NullValuePrompt property of the corresponding Application | ActionDesign | Actions | <Action> node.

If you set another value to this property in code, it will be saved to the Application Model.

See Also