C# ado.net 使用 row_number over() 简单的分页示例

        /// <summary>
        /// 获取Paging列表
        /// </summary>
        public List<HousesAgentEntity> GetPageList(int pageIndex, int pageSize, out int amount, string where)
        {
            int count = 0; //总页数
 
            string sqlCount = "Select Count(*) From HousesAgent" + where;//根据条件计算总页数
 
            List<HousesAgentEntity> list = new List<HousesAgentEntity>();
 
            #region 组装分页的sql语句 
 
            string sql = string.Format(@"Select * From ( Select Row_Number() Over(Order By UserId desc) Rows, * From HousesAgent {0} ) tb Where Rows > @Begin And Rows <= @End", where);  
 
            SqlParameter[] parameters = {
            new SqlParameter("@Begin", (pageIndex-1) * pageSize),
            new SqlParameter("@End", pageIndex * pageSize)
            };
 
            #endregion
 
            try
            {
 
                SqlDataReader dr = SqlSimpleHelper.ExecuteReader(SqlSimpleHelper.ConnectionString, CommandType.Text, sql, parameters);
                list = DataReaderToList(dr);
 
                Object obj = SqlSimpleHelper.ExecuteScalar(SqlSimpleHelper.ConnectionString, CommandType.Text, sqlCount);
                if (obj != null)
                {
                    int.TryParse(obj.ToString(), out count);
                }
                amount = count;
            }
 
            catch (Exception ex)
            {
                //记录异常日志
                LogHelper.WriteErrorLog(GetErrorMethod("GetPageList"), ex.Message);
                amount = 0;
            }
            return list;
        }