Ninject in ASP.NET MVC4

Question

So after much screwing around I finally got Ninject wired in and compiling in my MVC4 application. The problem I was running into is the IDependencyScope interface no longer ex

Answer 1

I am using DD4T, and encountered same error.

After confirming that all packages are installed by nuget package manager, I found that some of the DLLs/references were missing (newtonsoft etc):

Then, after re-installing Newtonsoft.Json (to re-install package use following command in Nuget Package Manager:Update-Package –reinstall Newtonsoft.Json), and putting netrtsn.dll from Tridion Deployer bin, I got this error - "Sequence contains no elements" with exactly same stack trace as given in this question.

Thanks to Naga, for providing this resolution deleted NinjectWebCommon.cs (the generated file, as the integration already exists in global.ascx.cs file), and wohooooo!!!! all errors resolved, Tridion + MVC4 = DD4T is running fine now.

Answer 2

Check out the Pro ASP.NET MVC 3 book. I just ported this code over from MVC3 to MVC4 last night and works correctly. Page 322 to be exact.

What I don't see is where you are mapping your Interface to your concrete items.

Bind<ISomething>().To<Something>();

Add another constructor and add the method that calls your mapping;

public NinjectDependencyResolver() {
    _kernal = new StandardKernel();
    RegisterServices(_kernel);
}

public static void RegisterServices(IKernel kernel) {
    kernel.Bind<ISomething>().To<Something>();
}

Here's what a resolver could/should look like;

   public class NinjectDependencyResolver : IDependencyResolver {
    private IKernal _kernel;

    public NinjectDependencyResolver(){
        _kernal = StandardKernal();
        AddBindings();
    }

    public NinjectDependencyResolver(IKernel kernel)
    {
        _kernel = kernel;
    }

    public object GetService(Type serviceType)
     {
         return _kernel.TryGet(serviceType);
     }

     public IEnumerable<object> GetServices(Type serviceType)
     {
        return _kernal.GetAll(serviceType);
     }

    public IBindingToSyntax<T> Bind<T>() {
      return _kernal.Bind<T>();
    }

     public static void RegisterServices(IKernel kernel){
      //Add your bindings here. 
      //This is static as you can use it for WebApi by passing it the IKernel
     }
}

Global.Asx -

Application_Start()

method

DependencyResolver.SetResolver(new NinjectDependencyResolver());

That's it.

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UPDATED 11/14/2012

On a side note, if you're working with MVC WebAPI, you will want to use WebApiContrib.IoC.Ninject from nuget. Also, check out the "Contact Manager" in their samples asp.net.com. This helped to cleanup the implementation of Ninject