[LazyLoad] private IProductRepository _productRepository;

public class LazyLoadAttribute : LocationInterceptionAspect
{
    public override void OnGetValue(LocationInterceptionArgs args)
    {
        if (args.Value == null)
        {
            var locationType = args.Location.LocationType;
            var instantiation = ObjectFactory.GetInstance(locationType);

            if (instantiation != null)
            {
                args.SetNewValue(instantiation);
            }
        }
        args.ProceedGetValue();
    }
}