/// <summary>

        /// DataTable分页并取出指定页码的数据

        /// </summary>

        /// <param name="dtAll">DataTable</param>

        /// <param name="pageNo">页码,注意：从1开始</param>

        /// <param name="pageSize">每页条数</param>

        /// <returns>指定页码的DataTable数据</returns>

        private DataTable getOnePageTable(DataTable dtAll, int pageNo, int pageSize)

        {

            var totalCount = dtAll.Rows.Count;

            var totalPage = getTotalPage(totalCount, pageSize);

            var currentPage = pageNo;

            currentPage = (currentPage > totalPage ? totalPage : currentPage);//如果PageNo过大，则较正PageNo=PageCount

            currentPage = (currentPage <=  ?  : currentPage);//如果PageNo<=0，则改为首页

            //----克隆表结构到新表

            var onePageTable = dtAll.Clone();

            //----取出1页数据到新表

            var rowBegin = (currentPage - ) * pageSize;

            var rowEnd = currentPage * pageSize;

            rowEnd = (rowEnd > totalCount ? totalCount : rowEnd);

            for (var i = rowBegin; i <= rowEnd - ; i++)

            {

                var newRow = onePageTable.NewRow();

                var oldRow = dtAll.Rows[i];

                foreach (DataColumn column in dtAll.Columns)

                {

                    newRow[column.ColumnName] = oldRow[column.ColumnName];

                }

                onePageTable.Rows.Add(newRow);

            }

            return onePageTable;

        }

        /// <summary>

        /// 返回分页后的总页数

        /// </summary>

        /// <param name="totalCount">总记录条数</param>

        /// <param name="pageSize">每页显示条数</param>

        /// <returns>总页数</returns>

        public int getTotalPage(int totalCount, int pageSize)

        {

            var totalPage = (totalCount / pageSize) + (totalCount % pageSize >  ?  : );

            return totalPage;

        }