AutofacIocAdapter.cs

    public class AutofacIocAdapter : IContainerAdapter
    {
        private readonly IContainer _container;

        public AutofacIocAdapter(IContainer container)
        {
            _container = container;
        }

        private ILifetimeScope CurrentScope
        {
            get
            {
                return HttpContext.Current.Items["AutofacScope"] as ILifetimeScope;
            }
        }

        public T Resolve<T>()
        {
            return CurrentScope == null ? _container.Resolve<T>() : CurrentScope.Resolve<T>();
        }

        public T TryResolve<T>()
        {
            T result;
            return CurrentScope == null
                ? _container.TryResolve(out result) ? result : default(T)
                : CurrentScope.TryResolve(out result) ? result : default(T);
        }
    }