CODEWITHSUNDEEP
asp.net-mvc-5light-inject
Skadoosh
Skadoosh

Reputation: 2623

ASP.NET MVC 5 and LightInject

I am trying to use LightInject with my current project but I keep getting a null value. I have a web app in MVC 5 and a business tier attached with it. I have installed the LightInject.Mvc and LightInject.Web in my web project. I have installed the LightInject.Mvc in my business project.

In the business tier, I have a compositionRoot.cs file:

using LightInject;
using SimpleKB.Business.Commands;

namespace SimpleKB.Business
{
    public class CompositeRoot : ICompositionRoot
    {
        public void Compose(IServiceRegistry serviceRegistry)
        {
            serviceRegistry.Register<IRegisterUserCommand, RegisterUserCommand>();
            serviceRegistry.Register<ICreateCategoryCommand, CreateCategoryCommand>();
            serviceRegistry.Register<IUpdateCategoryCommand, UpdateCategoryCommand>();
        }
    }
}

Next, in the web project, in the Global.asax.cs, I have the following in the app_start method:

var serviceContainer = new ServiceContainer();
serviceContainer.RegisterFrom<Business.CompositeRoot>();
serviceContainer.EnableMvc();

Finally, my controller code looks like this:

public class AccountController : Controller
    {
        public IRegisterUserCommand RegisterUserCommand { get; set; }

        [HttpGet]
        [AllowAnonymous]
        public ActionResult Login()
        {
            RegisterUserCommand.Execute();
            return View();
        }
    }

I basically get the null exception in the controller when the code is trying to use RegisterUserCommand. I assumed that LightInject automatically injected code when an interface is encountered. What am I missing?

Upvotes: 0

Views: 524

Answers (1)

Skadoosh
Skadoosh

Reputation: 2623

I figured it out after looking at the code for LigtInject.Mvc project. Basically, the code in my global.asax.cs should look like below:

var serviceContainer = new ServiceContainer();
serviceContainer.RegisterFrom<Business.CompositeRoot>();
serviceContainer.RegisterControllers();
serviceContainer.EnableMvc()

Upvotes: 0

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