EFCoreObjectSpaceProvider<TDbContext> Class

Provides Object Space in EF Core-based XAF applications.

Namespace: DevExpress.ExpressApp.EFCore

Assembly: DevExpress.ExpressApp.EFCore.v26.1.dll

NuGet Package: DevExpress.ExpressApp.EFCore

Declaration

C#

public class EFCoreObjectSpaceProvider<TDbContext> :
    IObjectSpaceProvider,
    IDatabaseSchemaChecker,
    IDisposable
    where TDbContext : DbContext

VB.NET

Public Class EFCoreObjectSpaceProvider(Of TDbContext As DbContext)
    Implements IObjectSpaceProvider,
               IDatabaseSchemaChecker,
               IDisposable

Type Parameters

Name	Description
TDbContext	The database provider

Remarks

XAF uses an Object Space Provider to create Object Spaces. The following Object Space Provider types are included in XAF:

Object Space Provider	Object Space	Application Builder Method
EFCoreObjectSpaceProvider<TDbContext>	EFCoreObjectSpace	AddEFCore
XPObjectSpaceProvider	XPObjectSpace	AddXpo
SecuredEFCoreObjectSpaceProvider<TDbContext>	SecuredEFCoreObjectSpace	AddSecuredEFCore
SecuredObjectSpaceProvider	SecuredXPObjectSpace	AddSecuredXpo
NonPersistentObjectSpaceProvider	NonPersistentObjectSpace	AddNonPersistent

XAF applications configure Object Space Providers through the Application Builder’s ObjectSpaceProviders properties: IBlazorApplicationBuilder.ObjectSpaceProviders and IWinApplicationBuilder.ObjectSpaceProviders. When you create an application with the Template Kit, it registers Object Space Providers for the selected preset.

Refer to the following topic for instructions on how to add custom Object Space Providers to your application: Custom Object Space Provider.

Note

When multiple Object Space Providers are registered in the application, the ModuleUpdater.UpdateDatabaseAfterUpdateSchema method is executed multiple times, once for each registered Provider. In this method, before accessing an object of a particular type, check if the current Object Space supports this type using the IObjectSpace.CanInstantiate method.

Implements

IObjectSpaceProvider

Inheritance

Object

EFCoreObjectSpaceProvider<TDbContext>

SecuredEFCoreObjectSpaceProvider<TDbContext>