ServiceDescriptor

 ServiceLifetime Specifies the lifetime of a service in an .

 ActivatorUtilities Helper code for the various activator services.

 ServiceCollectionServiceExtensions Extension methods for adding services to an .

 ServiceProviderServiceExtensions Extension methods for getting services from an .

 IServiceCollection Specifies the contract for a collection of service descriptors.

 IServiceProviderFactory`1 Provides an extension point for creating a container specific builder and an .

 IServiceScope The method ends the scope lifetime. Once Dispose is called, any scoped services that have been resolved from will be disposed.

 IServiceScopeFactory

 ISupportRequiredService Optional contract used by to resolve services if supported by .