EFCoreObjectSpaceProviderBuilderExtensions.AddEFCore<TContext>(IObjectSpaceProviderServiceBasedBuilder<TContext>, Action<IServiceProvider, EFCoreObjectSpaceProviderOptionsBuilder>) Method

Adds the EFCoreObjectSpaceProvider<TDbContext> to your ASP.NET Core Blazor application.

Namespace: DevExpress.ExpressApp.ApplicationBuilder

Assembly: DevExpress.ExpressApp.EFCore.v24.2.dll

NuGet Package: DevExpress.ExpressApp.EFCore

Declaration

C#

public static DbContextServiceBasedBuilder<TContext> AddEFCore<TContext>(
    this IObjectSpaceProviderServiceBasedBuilder<TContext> builder,
    Action<IServiceProvider, EFCoreObjectSpaceProviderOptionsBuilder> configureObjectSpaceProviderOptions
)
    where TContext : IXafApplicationBuilder<TContext>, IAccessor<IServiceCollection>

VB.NET

<ExtensionAttribute>
Public Shared Function AddEFCore(Of TContext As {IXafApplicationBuilder(Of TContext), IAccessor(Of IServiceCollection)})(
    builder As IObjectSpaceProviderServiceBasedBuilder(Of TContext),
    configureObjectSpaceProviderOptions As Action(Of IServiceProvider, EFCoreObjectSpaceProviderOptionsBuilder)
) As DbContextServiceBasedBuilder(Of TContext)

Parameters

Name	Type	Description
builder	IObjectSpaceProviderServiceBasedBuilder<TContext>	Allows you to register and configure Object Space Providers in your application, and chain further provider registrations.
configureObjectSpaceProviderOptions	Action<IServiceProvider, EFCoreObjectSpaceProviderOptionsBuilder>	Options that allow you to configure the Object Space Provider.

Type Parameters

Name	Description
TContext	The IBlazorApplicationBuilder type.

Returns

Type	Description
DbContextServiceBasedBuilder<TContext>	Allows you to register and configure Object Space Providers in your application, and chain further provider registrations.

Remarks

This method must be used together with one of the following methods:

• WithDbContext<TDbContext>(Action<IServiceProvider, DbContextOptionsBuilder>)
• WithAuditedDbContext<TContext>(DbContextServiceBasedBuilder<TContext>, Action<AuditedDbContextServiceBasedConfigurator>, ServiceLifetime)

The following example demonstrates how to use the AddEFCore method:

File: MySolution.Blazor.Server\Startup.cs.

C#

using DevExpress.ExpressApp.ApplicationBuilder;
using DevExpress.ExpressApp.Blazor.ApplicationBuilder;
// ...
public class Startup {
   // ...
    public void ConfigureServices(IServiceCollection services) {
        // ...
        services.AddXaf(Configuration, builder => {
            builder.UseApplication<MySolutionBlazorApplication>();
            builder.ObjectSpaceProviders
                .AddEFCore(options => options.PreFetchReferenceProperties())
                .WithDbContext<MySolutionEFCoreDbContext>((serviceProvider, options) => {
                    // ...
                })
                .AddNonPersistent();
        });
        // ...
    }
}