长文章分页代码类

提供一个重载，默认有一个分页符，分割采用正则表达式，样式名是page，或者自己改。

需引入using System.Text.RegularExpressions;

    /// <summary>
    /// 长文章分页
    /// </summary>
    public class SplictPage
    {
        /// <summary>
        /// 长文章分页
        /// </summary>
        /// <param name="content">欲分割的内容</param>
        /// <param name="pageingFlag">分割标识符</param>
        /// <param name="sprarm">传递的参数，如：newsid=1</param>
        /// <returns></returns>
        public static string bind(string content,string pageingFlag, string sprarm)
        {
            string thisnr = "";
            string thispage = "";
            int currpagenum;

            string[] temp = Regex.Split(content, pageingFlag, RegexOptions.IgnoreCase);

            try
            {
                currpagenum = System.Convert.ToInt32(System.Web.HttpContext.Current.Request.QueryString["page"]);
                if (currpagenum <= 0)
                {
                    currpagenum = 1;
                }

                if (currpagenum > temp.Length)
                {
                    currpagenum = temp.Length;
                }
            }
            catch
            {
                return "error";
            }

            if (System.Web.HttpContext.Current.Request.QueryString["page"] == null)
            {
                thisnr = temp[0];
            }
            else
            {
                thisnr = temp[currpagenum - 1];
            }

            if (temp.Length > 1)
            {
                thispage = "<div class=\"page\"><a href=\"?" + sprarm + "&page=1\" style=\"auto;border:0;\">首页</a>";
                thispage += "<a href=\"?" + sprarm + "&page=" + (currpagenum - 1) + "\" style=\"auto;border:0;\">上一页</a>";
                for (int i = 0; i <= temp.Length - 1; i++)
                {
                    if (i == currpagenum - 1)
                    {
                        thispage += "<font>" + (i + 1) + "</font>";
                    }
                    else
                    {
                        thispage += "<a href=?" + sprarm + "&page=" + (i + 1) + ">" + (i + 1) + "</a>";
                    }
                }
                thispage += "<a href=\"?" + sprarm + "&page=" + (currpagenum + 1) + "\" style=\"auto;border:0;\">下一页</a>";
                thispage += "<a href=\"?" + sprarm + "&page=" + temp.Length + "\" style=\"auto;border:0;\">末页</a></div>";
            }
            return thisnr + thispage;
        }
        
        /// <summary>
        /// 长文章分页，默认分页标识：<div>\\$HengCmsPage\\$</div>
        /// </summary>
        /// <param name="content">欲分割的内容</param>
        /// <param name="sprarm">传递的参数，如：newsid=1</param>
        /// <returns></returns>
        public static string bind(string content, string sprarm)
        {
            return bind(content, "<div>\\$HengCmsPage\\$</div>", sprarm);
        }
    }