NinjectDependencyResolver.cs

public class NinjectDependencyScope : IDependencyScope
{
    private IKernel _kernel;

    public NinjectDependencyScope(IKernel kernel)
    {
        Contract.Assert(kernel != null);

        this._kernel = kernel;
    }

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

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

    public void Dispose()
    {
        this._kernel = null;
    }
}

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

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

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