Question

I registered unity container like this:

    var container = new UnityContainer();

    container.RegisterType<ICacheManager, CacheManager>(new ContainerControlledLifetimeManager())

Is it possible to get access to this “container” from controller

Answer 1

One way of doing this which I often do for convenience is to declare your container as a global variable in your Global.ascx.cs file like:

public class MvcApplication : System.Web.HttpApplication
{
    public static UnityContainer Container;

    protected void Application_Start()
    {
         // assuming your initialize here
    } 
}

However this is fairly hack-ish.

The correct thing to do would be to use Unity to resolve your Controllers (See this article on creating a unity controller factory), and then allow unity to inject any dependencies into your controller when it resolves the controller.

So a controller like:

public MyController: Controller {

 public ICacheManager CacheManager {get;set;}

}

Would automagically resolver any dependencies that your container has registered.