asp.net文章内容分页方法

#region Html内容分页处理函数
        /// <summary>
        /// Html内容分页处理函数 
        /// </summary>
        /// <param name="strBody">要分页的内容</param>
        /// <param name="strSplitString">分隔字符串</param>
        /// <param name="pageIndexName">页面索引参数名</param>
        /// <param name="patter">链接匹配模式</param>
        /// <param name="isAppendHeadEnd">是否追加第一页和最后一页</param>
        /// <returns></returns>
        public static string CreateContentPager(ref string strBody,
                                    string strSplitString,
                                    string pageIndexName,
                                    string patter,
                                    bool isAppendHeadEnd)
        {
            string[] strBodyArray = strBody.Split(new string[] { strSplitString }, StringSplitOptions.None);
            //分页内容
            StringBuilder strHtmlPager = new StringBuilder();
            int currentPageIndex = 1; //当前页页码
            int pageCount = strBodyArray.Length;//总页数
            if (!string.IsNullOrEmpty(HttpContext.Current.Request[pageIndexName]))
            {
                currentPageIndex = CommonFunction.getInteger(HttpContext.Current.Request[pageIndexName]);
            }
            //无需分页
            if (pageCount == 1)
            {
                return null;
            }
            //开始分页处理
            if (isAppendHeadEnd)
            {
                if (currentPageIndex == 1)
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.Append("<b>[第一页]</b>");
                }
                else
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.Append(patter.Replace("{0}", 1.ToString()).Replace("{1}", "第一页"));
                }
            }
            //页头
            if (currentPageIndex > 1)
            {
                //显示上一页
                strHtmlPager.AppendLine();
                strHtmlPager.Append(patter.Replace("{0}", (currentPageIndex - 1).ToString()).Replace("{1}", "上一页"));
            }
            else
            {
                if (currentPageIndex == 1)
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.Append("<b>[上一页]</b>");
                }
            }
            //开始分页
            for (int i = 1; i <= pageCount; i++)
            {
                //如果 当前页索引=页码的话，执行操作标示当前页码
                if (i == currentPageIndex)
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.AppendFormat("<b>[{0}]</b>", i);
                }
                else
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.AppendFormat(patter.Replace("{0}", i.ToString()).Replace("{1}", i.ToString()));
                }
            }
            //页尾
            if (currentPageIndex + 1 > pageCount)
            {
                strHtmlPager.AppendLine();
                strHtmlPager.Append("<b>[下一页]</b>");
            }
            else
            {
                strHtmlPager.AppendLine();
                strHtmlPager.Append(patter.Replace("{0}", (currentPageIndex + 1).ToString()).Replace("{1}", "下一页"));
            }
            if (isAppendHeadEnd)
            {
                if (currentPageIndex == pageCount)
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.Append("<b>[已经是最后一页]</b>");
                }
                else
                {
                    strHtmlPager.AppendLine();
                    strHtmlPager.Append(patter.Replace("{0}", pageCount.ToString()).Replace("{1}", "最后一页"));
                }
            }
            strBody = strBodyArray[currentPageIndex - 1];
            return strHtmlPager.ToString();
        }
        #endregion