/// <summary>          /// 对DataTable进行分页,起始页为1          /// </summary>          /// <param name="dt"></param>          /// <param name="PageIndex"></param>          /// <param name="PageSize"></param>          /// <returns></returns>          public static DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize)        {            if (PageIndex == 0)                return dt;            DataTable newdt = dt.Copy();            newdt.Clear();            int rowbegin = (PageIndex - 1) * PageSize;            int rowend = PageIndex * PageSize;            if (rowbegin >= dt.Rows.Count)                return newdt;            if (rowend > dt.Rows.Count)                rowend = dt.Rows.Count;            for (int i = rowbegin; i <= rowend - 1; i++)            {                DataRow newdr = newdt.NewRow();                DataRow dr = dt.Rows[i];                foreach (DataColumn column in dt.Columns)                {                    newdr[column.ColumnName] = dr[column.ColumnName];                }                newdt.Rows.Add(newdr);            }            return newdt;        }        /// <summary>          /// 获取总页数          /// </summary>          /// <param name="sumCount">结果集数量</param>          /// <param name="pageSize">页面数量</param>          /// <returns></returns>          public static int getPageCount(int sumCount, int pageSize)        {            int page = sumCount / pageSize;            if (sumCount % pageSize > 0)            {                page = page + 1;            }            return page;        }