NHibernate分页实现---条件可变

 

        /// <summary>
        /// NHibernate分页实现---条件可变
        /// </summary>
        /// <param name="maxResults">记录数</param>
        /// <param name="pageStart">开始页</param>
        /// <param name="totalRecordCount">总记录数</param>
        /// <param name="order">排序方式</param>
        /// <param name="criterionList">查询条件</param>
        /// <returns></returns>
        public IList<T> GetByCriteria(int maxResults, int pageStart, out int totalRecordCount, Order order, params ICriterion[] criterionList)
        {
            ICriteria criteria = CreateCriteria();
            foreach (ICriterion criterion in criterionList)
                criteria.Add(criterion);

            //获取记录总数
            ICriteria criteriaRecordCount = CriteriaTransformer.Clone(criteria);
            totalRecordCount = criteriaRecordCount.SetProjection(NHibernate.Criterion.Projections.RowCount())
                .UniqueResult<int>();


            criteria.SetMaxResults(maxResults);
            criteria.SetFirstResult(pageStart * maxResults);

            if (order != null)
                criteria.AddOrder(order);

            return criteria.List<T>();
        }