CODEWITHSUNDEEP
dependency-injectionninjectninject.web.mvc
jimmy
jimmy

Reputation: 2031

"Error loading Ninject component ICache" second time I call my service

First time I call my service everything works fine. After that I receive this error: "Error loading Ninject component ICache\r\nNo such component has been registered in the kernel's component container.

The controller I am calling has IKernel as a parameter in its constructor and my guess is that this is the problem.

How am i supposed to pass a kernel object into my service?

My controller constructor:

public MyController(IKernel diContainer)
    {
        _diContainer = diContainer;
    }

Part of my Global.asax file:

var kernel = NinjectWebApi.Kernel;

kernel.Bind<IMyController().To<MyController();

//Set the dependency resolver to use ninject
GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver(kernel);

I am using Ninject 3.2.

For my other services where I am not passing in the Kernel to the service this approach works fine.

public class NinjectDependencyScope : IDependencyScope
{
    private IResolutionRoot _resolver;

    public NinjectDependencyScope(IResolutionRoot resolver)
    {
        _resolver = resolver;
    }

    public object GetService(Type serviceType)
    {
        if (_resolver == null)
        {
            throw new ObjectDisposedException("this", "This scope has been disposed.");
        }

        return _resolver.TryGet(serviceType);
    }

    public IEnumerable<object> GetServices(Type serviceType)
    {
        if (_resolver == null)
        {
            throw new ObjectDisposedException("this", "This scope has been disposed.");
        }

        return _resolver.GetAll(serviceType);
    }

    public void Dispose()
    {
        var disposable = _resolver as IDisposable;
        disposable?.Dispose();
        _resolver = null;
    }
}

public class NinjectDependencyResolver : NinjectDependencyScope, IDependencyResolver
{
    private readonly IKernel _kernel;

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

    public IDependencyScope BeginScope()
    {
        return new NinjectDependencyScope(_kernel.BeginBlock());
    }
}

Upvotes: 1

Views: 767

Answers (1)

Igor Lizunov
Igor Lizunov

Reputation: 549

It seems you dispose container inside your NinjectDependenvyResolver Dispose method.

Upvotes: 4

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