Keyed(TLimit, TScanningActivatorData, TRegistrationStyle) Method (IRegistrationBuilder(TLimit, TScanningActivatorData, TRegistrationStyle), Func(Type, Object), Type)

RegistrationExtensionsKeyedTService Method (IRegistrationBuilderObject, ScanningActivatorData, DynamicRegistrationStyle, FuncType, Object)

Specifies how a type from a scanned assembly is mapped to a keyed service.

Namespace: Autofac
Assembly: Autofac (in Autofac.dll) Version: 6.0.0+39696a967e8826f7f1ebc8c1ff4523c9dd75abe0

Syntax

Copy

public static IRegistrationBuilder<Object, ScanningActivatorData, DynamicRegistrationStyle> Keyed<TService>(
	this IRegistrationBuilder<Object, ScanningActivatorData, DynamicRegistrationStyle> registration,
	Func<Type, Object> serviceKeyMapping
)

<ExtensionAttribute>
Public Shared Function Keyed(Of TService) ( 
	registration As IRegistrationBuilder(Of Object, ScanningActivatorData, DynamicRegistrationStyle),
	serviceKeyMapping As Func(Of Type, Object)
) As IRegistrationBuilder(Of Object, ScanningActivatorData, DynamicRegistrationStyle)

Parameters

registration: Type: Autofac.BuilderIRegistrationBuilderObject, ScanningActivatorData, DynamicRegistrationStyle
Registration to set service mapping on.
serviceKeyMapping: Type: SystemFuncType, Object
Function mapping types to service keys.

Type Parameters

TService: Service type provided by the component.

Return Value

Type: IRegistrationBuilderObject, ScanningActivatorData, DynamicRegistrationStyle
Registration builder allowing the registration to be configured.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IRegistrationBuilderObject, ScanningActivatorData, DynamicRegistrationStyle. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

RegistrationExtensions Class

Keyed Overload

Autofac Namespace