Unity register generic type

Question

How to register generic interface as shown below:

public interface ISigQuery<T> where T : SigReadModel, new()

public class SigQuery : ISigtQuery<SigReadModel>
{
}

I tried to register as follows:

.RegisterType(typeof(ISigQuery<>), typeof(SigQuery))(new ContainerControlledLifetimeManager())

I get error:

Method name expected

Does this answer your question? [Unity: Register and resolve class with generic type](https://stackoverflow.com/questions/35334240/unity-register-and-resolve-class-with-generic-type) — Selim Yildiz, Feb 26 '20 at 10:49
@SelimYıldız No, i tried already that: .RegisterType(typeof(ISigQuery<>), typeof(SigQuery<>))(new ContainerControlledLifetimeManager()) then i get: The non-generic type 'SigQuery' cannot be used with type arguments — Arie, Feb 26 '20 at 10:58

score 1 · Answer 1 · answered Feb 26 '20 at 14:03

Since SigQuery implements ISigtQuery<SigReadModel>, you will have to register it by that closed-generic version of ISigtQuery<T>:"

.RegisterType(
    typeof(ISigQuery<SigReadModel>),
    typeof(SigQuery),
    new ContainerControlledLifetimeManager());

Of you can use the generic RegisterType overload:

.RegisterType<ISigQuery<SigReadModel>, SigQuery>(
    new ContainerControlledLifetimeManager());

Selim Yildiz · Answer 2 · 2020-02-26T11:26:20.567

0

According to usage of RegisterType you need to change:

.RegisterType(typeof(ISigQuery<>), typeof(SigQuery))(new ContainerControlledLifetimeManager())

to

.RegisterType(typeof(ISigQuery<>), typeof(SigQuery), new ContainerControlledLifetimeManager())

edited Feb 26 '20 at 11:26

answered Feb 26 '20 at 11:20

Selim Yildiz

2 Answers2