EFCoreObjectSpaceProviderOptionsBuilder.CustomCreateObjectSpaceProvider Property

Allows you to create a custom Object Space provider.

Namespace: DevExpress.ExpressApp.ApplicationBuilder

Assembly: DevExpress.ExpressApp.EFCore.v25.1.dll

NuGet Package: DevExpress.ExpressApp.EFCore

Declaration

C#

public Func<CustomCreateObjectSpaceProviderContext, IObjectSpaceProvider> CustomCreateObjectSpaceProvider { get; set; }

VB.NET

Public Property CustomCreateObjectSpaceProvider As Func(Of CustomCreateObjectSpaceProviderContext, IObjectSpaceProvider)

Property Value

Type	Description
Func<CustomCreateObjectSpaceProviderContext, IObjectSpaceProvider>	A delegate that accepts an instance of CustomCreateObjectSpaceProviderContext and must return the custom Object Space provider.

Remarks

You can use this delegate to create a custom Object Space provider in WinForms, Blazor, and WebAPI applications that use Integrated Security, Middle Tier Security, or no security.

C# (Integrated security)

builder.ObjectSpaceProviders 
    .AddSecuredEFCore(o => { 
        // ... 
        o.CustomCreateObjectSpaceProvider = (context) => { 
            var selectDataSecurityProvider = context.ServiceProvider.GetRequiredService<ISelectDataSecurityProvider>(); 
            var dbContextFactory = context.ServiceProvider.GetRequiredService<IDbContextFactory<MainDemoDbContext>>(); 
            return new MyCustomEFCoreObjectSpaceProvider<ApplicationDbContext>(...); 
        }; 
    }) 
    .WithDbContext<ApplicationDbContext>(...) 

C# (No security or middle-tier security)

builder.ObjectSpaceProviders 
    .AddEFCore(o => { 
        // ... 
        o.CustomCreateObjectSpaceProvider = (context) => { 
            var dbContextFactory = context.ServiceProvider.GetRequiredService<IDbContextFactory<MainDemoDbContext>>(); 
            return new MyCustomEFCoreObjectSpaceProvider<ApplicationDbContext>(...); 
        }; 
    }) 
    .WithDbContext<ApplicationDbContext>(...)