CODEWITHSUNDEEP
c#genericsautofac
Callum Linington
Callum Linington

Reputation: 14417

Autofac Resolve Open Generic Interface with Open Generic Class

So I have an interface and class:

public interface IMyInterface<T> where T : ISomeEntity {}

public class MyClass<T> : IMyInterface<T>
    where T : ISomeEntity {}

I will have some class that calls for it:

public class SomeClass : ISomeClass
{
    public SomeClass (IMyInterface<AuditEntity> myInterface) {}
}

I've done all sorts of things to get it to register the open generic interface and class with no luck.

I just want to say something like:

container.RegisterType(typeof(MyClass<>)).As(typeof(IMyInterface<>));

It would be annoying if I have to go through and explicitly do something like:

container.RegisterType<MyClass<AuditEntity>>().As<IMyInterface<AuditEntity>>();

Shouldn't this be trivial?

Upvotes: 4

Views: 4688

Answers (2)

Cyril Durand
Cyril Durand

Reputation: 16192

You have to use the RegisterGeneric method see Registration Concepts - Open Generic Components

Something like this should works : 

builder.RegisterGeneric(typeof(MyClass<>)).As(typeof(IMyInterface<>));

Upvotes: 9

shf301
shf301

Reputation: 31394

Yes it is trivial with container.RegisterGeneric:

container.RegisterGeneric(typeof(MyClass<>)).As(typeof(IMyInterface <>));

You also seem to have your interface and class switched in the examples in your question. The registration should start with the type to want to register (e.g. MyClass) followed by the type you it to be registered as (e.g. IMyInterface).

Upvotes: 2

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