I am going through the following tutorial. I'm at the part
IUnityContainer BuildUnityContainer()
{
var container = new UnityContainer();
container.RegisterType<IStoreService, StoreService>();
container.RegisterType<IController, StoreController>("Store");
return container;
}
The question I have is how do I do multiple controllers? For instance if I have Store, Music, and Owner controllers, each with their own I[Name]Service
The new Unity 3 provides an integration point for MVC 4 out of the box. All the details on how to use it are here: http://msdn.microsoft.com/en-us/library/dn178463(v=pandp.30).aspx#sec17
You can also combine this with the registration by convention feature to register all your mappings like IFoo -> Foo: http://msdn.microsoft.com/en-us/library/dn178463(v=pandp.30).aspx#sec23
Regarding controllers, you do not need to register them explicitly in Unity, because if you ask Unity to resolve an instance of a concrete type that was not previously registered, it will build one up (injecting the dependencies using the longest constructor). MVC will ask Unity using the concrete types of the controllers, so they will work automatically.
you have to register each of those in the same way. Or you might have to write a logic where you can get all possible types using reflaction and register those within loop.
Take a look at http://autoregistration.codeplex.com/. It does autoregistration of types for unity. Most other IOC containers does this as well.
Take a look at http://weblogs.asp.net/shijuvarghese/archive/2008/10/24/asp-net-mvc-tip-dependency-injection-with-unity-application-block.aspx.
Step 3 contains code for injecting dependencies to controller Also include the following code from Step 4:
ControllerBuilder.Current.SetControllerFactory(new myFinance.Web.Controllers.UnityControllerFactory(container));
