autofac

Short Question: Same as this unanswered problem Long Question: I just ported some code over from an MVC 4 + Web Api solution that was using Autofac into my new solution which is also using Autofac but only with Web Api 2 (no MVC 5.1 project, just a web api). In my previous solution I had MVC4 and Web Api so I had 2 Bootstrapper.cs files, one for each. I copied over just the Web Api bootstrapper for the new project. Now I have 2 other projects in the new solution that need to pull a dependency. Lets just assume I have to use DependencyResolver.Current.GetService<T>() despite it being an anti

Consider the following builder.Register(c => new A()); builder.Register(c => new B()); builder.Register(c => new C()); B and C are both ISomeInterface . I would now like to get an IEnumerable of all registered objects that implement ISomeInterface . How can I accomplish this in Autofac? catflier Just tried this, works and does not depend on lifetime context: Enumerate types using Activator instead var types = con.ComponentRegistry.Registrations .Where(r => typeof(ISomeInterface).IsAssignableFrom(r.Activator.LimitType)) .Select(r => r.Activator.LimitType); Then to resolve: IEnumerable

I am trying to debug some problems in a legacy code base. I think is being caused by an exception being thrown because something can't be resolved from the Autofac container. However I think the exception is getting buried somewhere and I am not seeing the root cause. I am sure something is being requested from a controller that either can't be found or something that can be found has a dependency that can't be satisfied. There aren't any guard clauses etc. so I think I am getting a null reference issue. To try and debug this I want to see all requests that aren't found in the container. Is

Given the following code, how do I resolve the right SomeInstance in autofac? public class BaseClass {} public class SubClass1 : BaseClass {} public class SubClass2 : BaseClass {} public interface IGenericInterface<T> where T : BaseClass {} public class SomeInstance1<T> : IGenericInterface<T> where T : SubClass1 public class SomeInstance2<T> : IGenericInterface<T> where T : SubClass2 I want to choose SomeInstance1 or 2 based on the type of of the generic on the sub classes. So for example I have a collection of sub classes (SubClass1, 2....) and while iterating over them I want to choose the

I used the MVC integration from autofac like this: ... var container = builder.Build(); DependencyResolver.SetResolver(new AutofacDependencyResolver(container)); But now I want to recreate the solution with the new Web Api RTM. And I want to use the new AutofacWebApiDependencyResolver class. But if I do this with AutofacWebApiDependencyResolver i got this error: The type Autofac.Integration.WebApi.AutofacWebApiDependencyResolver does not appear to implement Microsoft.Practices.ServiceLocation.IServiceLocator. I read that i have to do this now for setting the resolver: GlobalConfiguration