Datatable分页通用方法

        /// <summary>
        /// DataTable分页
        /// </summary>
        /// <param name="dt">DataTable</param>
        /// <param name="pageIndex">页索引,注意：从1开始</param>
        /// <param name="pageSize">每页大小</param>
        /// <returns></returns>
        public static DataTable GetPagedTable(DataTable dt, int pageIndex, int pageSize)
        {
            DataTable newdt = dt.Clone();
            int rowbegin = 0;
            int rowend = 0;
            if (pageIndex <= 0)
            {
                rowbegin = 0;
                rowend = (pageIndex + 1) * pageSize;
            }
            else
            {
                rowbegin = (pageIndex - 1) * pageSize;
                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 dr = dt.Rows[i];
                newdt.ImportRow(dr);
            }
            return newdt;
        }

    string DumpHrefs(String inputString)
    {
        Regex r;
        Match m;
        string ret = string.Empty;
        r = new Regex("href\\s*=\\s*(?:\"(?<1>[^\"]*)\"|(?<1>\\S+))'>",
            RegexOptions.IgnoreCase | RegexOptions.Compiled);
        for (m = r.Match(inputString); m.Success; m = m.NextMatch())
        {
            ret= m.Groups[1].ToString();
        }
        return ret;
    }