EntityFrameworkServiceCollectionExtensions Class (Microsoft.Extensions.DependencyInjection)

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Definition




Extension methods for setting up Entity Framework related services in an .

public static class EntityFrameworkServiceCollectionExtensions

Public Module EntityFrameworkServiceCollectionExtensions





Inheritance

System.ObjectSystem.Object

EntityFrameworkServiceCollectionExtensionsEntityFrameworkServiceCollectionExtensions

Methods



AddDbContext(IServiceCollection, Action, ServiceLifetime)
AddDbContext(Of TContext)(IServiceCollection, Action(Of DbContextOptionsBuilder), ServiceLifetime)

Registers the given context as a service in the .
You use this method when using dependency injection in your application, such as with ASP.NET.
For more information on setting up dependency injection, see
http://go.microsoft.com/fwlink/?LinkId=526890.

public static IServiceCollection AddDbContext<TContext>(this IServiceCollection serviceCollection, Action<DbContextOptionsBuilder> optionsAction = null, ServiceLifetime contextLifetime = null)where TContext : DbContext
<ExtensionAttribute>
Public Shared Function AddDbContext(Of TContext As DbContext)(serviceCollection As IServiceCollection, optionsAction As Action(Of DbContextOptionsBuilder) = Nothing, contextLifetime As ServiceLifetime = Nothing) As IServiceCollection

Type Parameters

TContext

The type of context to be registered.

Parameters

serviceCollection


IServiceCollection
IServiceCollection

The to add services to.

contextLifetime


ServiceLifetime
ServiceLifetime

The lifetime with which to register the DbContext service in the container.

Returns


IServiceCollection
IServiceCollection

The same service collection so that multiple calls can be chained.

Examples

    public void ConfigureServices(IServiceCollection services) 
    
        var connectionString = "connection string to database";

        services.AddDbContext<MyContext>(options => options.UseSqlServer(connectionString)); 
    


AddDbContext(IServiceCollection, Action, ServiceLifetime),>
AddDbContext(Of TContext)(IServiceCollection, Action(Of IServiceProvider, DbContextOptionsBuilder), ServiceLifetime)

Registers the given context as a service in the .
You use this method when using dependency injection in your application, such as with ASP.NET.
For more information on setting up dependency injection, see http://go.microsoft.com/fwlink/?LinkId=526890.

This overload has an optionsAction that provides the applications System.IServiceProvider.
This is useful if you want to setup Entity Framework to resolve its internal services from the primary application service
provider.
By default, we recommend using the other overload, which allows Entity Framework to create and maintain its own
System.IServiceProvider
for internal Entity Framework services.

public static IServiceCollection AddDbContext<TContext>(this IServiceCollection serviceCollection, Action<IServiceProvider, DbContextOptionsBuilder> optionsAction, ServiceLifetime contextLifetime = null)where TContext : DbContext
<ExtensionAttribute>
Public Shared Function AddDbContext(Of TContext As DbContext)(serviceCollection As IServiceCollection, optionsAction As Action(Of IServiceProvider, DbContextOptionsBuilder), contextLifetime As ServiceLifetime = Nothing) As IServiceCollection

Type Parameters

TContext

The type of context to be registered.

Parameters

serviceCollection


IServiceCollection
IServiceCollection

The to add services to.

contextLifetime


ServiceLifetime
ServiceLifetime

The lifetime with which to register the DbContext service in the container.

Returns


IServiceCollection
IServiceCollection

The same service collection so that multiple calls can be chained.

Examples

    public void ConfigureServices(IServiceCollection services) 
    
        var connectionString = "connection string to database";

        services
            .AddEntityFrameworkSqlServer()
            .AddDbContext<MyContext>((serviceProvider, options) => 
                options.UseSqlServer(connectionString)
                       .UseInternalServiceProvider(serviceProvider)); 
    


AddDbContext(IServiceCollection, ServiceLifetime)
AddDbContext(Of TContext)(IServiceCollection, ServiceLifetime)

Registers the given context as a service in the .
You use this method when using dependency injection in your application, such as with ASP.NET.
For more information on setting up dependency injection, see http://go.microsoft.com/fwlink/?LinkId=526890.

public static IServiceCollection AddDbContext<TContext>(this IServiceCollection serviceCollection, ServiceLifetime contextLifetime)where TContext : DbContext
<ExtensionAttribute>
Public Shared Function AddDbContext(Of TContext As DbContext)(serviceCollection As IServiceCollection, contextLifetime As ServiceLifetime) As IServiceCollection

Type Parameters

TContext

The type of context to be registered.

Parameters

serviceCollection


IServiceCollection
IServiceCollection

The to add services to.

contextLifetime


ServiceLifetime
ServiceLifetime

The lifetime with which to register the DbContext service in the container.

Returns


IServiceCollection
IServiceCollection

The same service collection so that multiple calls can be chained.

Examples

    public void ConfigureServices(IServiceCollection services) 
    
        var connectionString = "connection string to database";

        services.AddDbContext<MyContext>(ServiceLifetime.Scoped); 
    


Equals(Object)
Equals(Object)


Inherited from System.Object








Equals(Object, Object)
Equals(Object, Object)


Inherited from System.Object








GetHashCode()
GetHashCode()


Inherited from System.Object








GetType()
GetType()


Inherited from System.Object








MemberwiseClone()
MemberwiseClone()


Inherited from System.Object








ReferenceEquals(Object, Object)
ReferenceEquals(Object, Object)


Inherited from System.Object








ToString()
ToString()


Inherited from System.Object









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source_link
https://www.asp.net