Parameter.AllowNull Property

Gets or sets whether or a not null value can be passed as a dashboard parameter value.

Namespace: DevExpress.DataAccess

Assembly: DevExpress.Dashboard.v23.2.Core.dll

NuGet Package: DevExpress.Dashboard.Core

Declaration

C#

[DashboardLocalizableCategory(DashboardStringId.CategoryNameGeneral)]
[DefaultValue(false)]
public bool AllowNull { get; set; }

VB.NET

<DashboardLocalizableCategory(DashboardStringId.CategoryNameGeneral)>
<DefaultValue(False)>
Public Property AllowNull As Boolean

Property Value

Type	Default	Description
Boolean	false	true to allow end-users to pass a null value as a dashboard parameter value; otherwise, false.