Add GetServices Extension method to IServiceProvider

[yishaigalatzer]

See MVC 5.0 IDependencyResolver signature:

public interface IDependencyResolver
{
    object GetService(Type serviceType);
    IEnumerable<object> GetServices(Type serviceType);
}

[wwwlicious]

+1 I was looking for this recently, instead has to register a collection which just seemed...not very DI

[yishaigalatzer]

@wwwlicious you don't register a collection instead register multiple services and resolve an 'ienumerable'

[Eilon]

@yishaigalatzer close this bug then?

[wwwlicious]

ah, like this?

var sc = new ServiceCollection();
sc.AddTransient<TInterface, TConcrete>();
sc.AddTransient<TInterface, TConcrete2>();
var sp = sc.BuildServiceProvider();
var instances = sp.GetService<IEnumerable<TInterface>>();

[yishaigalatzer]

@Eilon I plan to modify it a bit and submit a pr. Just a simple sugar on top API
@wwwlicious yup, that's it

[wwwlicious]

FYI, this didn't work when using constructor injection

public class testing {
 public void testing(IEnumerable<TInterface> interfaces) { }
}

[yishaigalatzer]

@wwwlicious we are using this pattern regularly in the framework.
I don't know if we support resolving a generic interface though.

This works:

// define
public interface Base { }

public class Impl1 : Base { }

public class Impl2 : Base { }

// register
...

// resolve

public class TestingController
{
    public void TestingController(IEnumerable<Base> implementations) { }
}

If you find that it doesn't can you provide a full sample so we can investigate (in a separate issue please :))