/// <summary>        /// 将DataTable进行分页并生成新的DataTable          /// </summary>        /// <param name="dt">原始Datatable</param>        /// <param name="PageIndex">需要的第n页</param>        /// <param name="PageSize">每页页数</param>        /// <returns></returns>        public DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize, out int recound)        {            if (PageIndex < 1)            {                PageIndex = 1;            }            else if (PageIndex > 1 || (PageIndex == 1))            {                PageIndex = PageIndex + 1;            }            DataTable newdt = dt.Copy();            newdt.Clear();            recound = dt.Rows.Count;            int rowbegin = (PageIndex - 1) * PageSize;            //停止行数            int rowend = PageIndex * PageSize;            if (rowbegin >= dt.Rows.Count)            {                return newdt;            }            if (rowend > dt.Rows.Count)            {                rowend = dt.Rows.Count;            }            //生成新的DataTable            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;        }