Unity equivalent for Ninject's Bind.ToMethod of IPrincipal,IIdentity

Question

I'm trying to replicate the following Ninject syntax in Unity, but not having any luck:

Bind<IIdentity>().ToMethod(c => HttpContext.Current.User.Identity);

I'm thinking it ought to look something like:

IUnityContainer container;
...
container.RegisterType<IIdentity>(HttpContext.Current.User.Identity);

How should it be?

Answer 1

While neontapir's answer could work, that extension method is Obsolete. The correct way to do this now would be to use an InjectionFactory:

container.RegisterType<IIdentity>(new InjectionFactory(u => HttpContext.Current.User.Identity));

Answer 2

container.RegisterInstance<IIdentity>(...);

Answer 3

I believe a static factory extension would do it. I'm rusty on Unity. Seeman's Dependency Injection in .NET is a good resource for situations like this.