Queue.Model.Service.GetFirstStep C# (CSharp) Метод

        public virtual ServiceStep GetFirstStep(ISession session)
        {
            return session.CreateCriteria<ServiceStep>()
                .Add(Restrictions.Eq("Service", this))
                .AddOrder(Order.Asc("SortId"))
                .SetMaxResults(1)
                .UniqueResult<ServiceStep>();
        }