DefaultClassOptionsAttribute Class

Sets default options for a class.

Namespace: DevExpress.Persistent.Base

Assembly: DevExpress.ExpressApp.v24.1.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface, Inherited = false)]
public class DefaultClassOptionsAttribute :
    Attribute

VB.NET

<AttributeUsage(AttributeTargets.Class Or AttributeTargets.Interface, Inherited:=False)>
Public Class DefaultClassOptionsAttribute
    Inherits Attribute

Remarks

The following default options are set when you apply DefaultClassOptionsAttribute to a business class:

• The corresponding item is added to the navigation control’s Default navigation item. This allows users to display a View with objects of this class.
• The corresponding item is added to the New Action’s Items list. This allows users to create objects of this class when objects of another type are displayed in the View.
• The corresponding item is added to the Data Type drop-down list in the Report Wizard. This allows users to create reports for objects of this class. For more information about how you can create and view reports in an XAF application, refer to the following topics:
  • Create and View Reports in an ASP.NET Core Blazor Application
  • Create and View Reports in a WinForms Application
  • Create and View Reports in an ASP.NET Web Forms Application
• The corresponding item is added to the type list in the Dashboards Data Source Wizard. This allows users to create dashboards for objects of this class. For more information about how you can create, view, and modify Dashboards, refer to the following topics:
  • Create, View, and Modify Dashboards in an ASP.NET Core Blazor Application
  • Create, View and Modify Dashboards in a WinForms Application
  • Create, View and Modify Dashboards in an ASP.NET Web Forms Application

If you do not want to set all the options specified above at the same time, use the following attributes:

• CreatableItemAttribute
• NavigationItemAttribute
• VisibleInReportsAttribute
• VisibleInDashboardsAttribute.

Inheritance

Object

Attribute

DefaultClassOptionsAttribute