简单好用的ASP.NET分页类（支持AJAX、自定义文字）

var ps=new PageString();  /*可选参数*/  ps.SetIsEnglish = true;// 是否是英文    (默认：false) ps.SetIsShowText = true;//是否显示分页文字 (默认：true) //ps.TextFormat=""             (默认值：《span class=/"pagetext/"》《strong》总共《/strong》:{0} 条 《strong》当前《/strong》:{1}/{2}《/span》) //ps.SetPageIndexName Request["pageIndex"](默认值："pageIndex") ps.SetIsAjax = false;//          (默认值："false")  /*函数参数*/ int total = 10000; int pageSize = 10; int pageIndex = Convert.ToInt32(Request["pageIndex"]);  var page = ps.ToString(total, pageSize, pageIndex, "/UI/PageStringTest.aspx?");  //获取 page html 输出Response.Write(page);

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Text.RegularExpressions; namespace SyntacticSugar{  /// <summary>  /// ** 描述：分页类  /// ** 创始时间：2015-5-29  /// ** 修改时间：-  /// ** 作者：sunkaixuan  public class PageString  {    /// <summary>    /// 是否是英文   (默认：false)    /// </summary>    public bool SetIsEnglish { get; set; }    /// <summary>    /// 是否显示分页文字(默认：true)    /// </summary>    public bool SetIsShowText { get; set; }    /// <summary>    /// 样式      (默认:"pagination")    /// </summary>    public string SetClassName { get; set; }    /// <summary>    /// 分页参数名   (默认:"pageIndex")    /// </summary>    public string SetPageIndexName { get; set; }    /// <summary>    /// 是否是异步 同步 href='' 异步 onclick=ajaxPage()  (默认:false)    /// </summary>    public bool SetIsAjax { get; set; }     /// <summary>    /// 自定义文字    /// string.Format("{0}{1}{2}","总记录数","当前页数","总页数")    /// 默认值：《span class=/"pagetext/"》《strong》总共《/strong》:{0} 条 《strong》当前《/strong》:{1}/{2}《/span》    /// </summary>    public string SetTextFormat { get; set; }     public PageString()    {      SetIsEnglish = false;      SetIsShowText = true;      SetTextFormat = "<span class=/"pagetext/"><strong>总共</strong>:{0} 条 <strong>当前</strong>:{1}/{2}</span> ";      SetClassName = "pagination";      SetPageIndexName = "pageIndex";      SetIsAjax = false;    }     /*免费的样式    .pagination .click {cursor:pointer}    .pagination a{text-decoration: none;border: 1px solid #AAE;color: #15B;font-size: 13px;border-radius: 2px;}    .pagination span{ color:#666;font-size:13px;display: inline-block;border: 1px solid #ccc;padding: 0.2em 0.6em;}    .pagination span.pagetext{ border:none}    .pagination a:hover{background: #26B;color: #fff;}    .pagination a{display: inline-block;padding: 0.2em 0.6em;}    .pagination .page_current{background: #26B;color: #fff;border: 1px solid #AAE;margin-right: 5px;}    .pagination{margin-top: 20px;}    .pagination .current.prev, .pagination .current.next{color: #999;border-color: #999;background: #fff;}     * */     /// <summary>    /// 分页算法＜一＞共20页 首页 上一页 1 2 3 4 5 6 7 8 9 10 下一页 末页    /// </summary>    /// <param name="total">总记录数</param>    /// <param name="pageSize">每页记录数</param>    /// <param name="pageIndex">当前页数</param>    /// <param name="query_string">Url参数</param>    /// <returns></returns>    public string ToString(int total, int pageSize, int pageIndex, string query_string)    {       int allpage = 0;      int next = 0;      int pre = 0;      int startcount = 0;      int endcount = 0;      StringBuilder pagestr = new StringBuilder();      pageIndex = pageIndex == 0 ? 1 : pageIndex;      pagestr.AppendFormat("<div class=/"{0}/" >", SetClassName);      if (pageIndex < 1) { pageIndex = 1; }      //计算总页数      if (pageSize != 0)      {        allpage = (total / pageSize);        allpage = ((total % pageSize) != 0 ? allpage + 1 : allpage);        allpage = (allpage == 0 ? 1 : allpage);      }      next = pageIndex + 1;      pre = pageIndex - 1;      startcount = (pageIndex + 5) > allpage ? allpage - 9 : pageIndex - 4;//中间页起始序号      //中间页终止序号      endcount = pageIndex < 5 ? 10 : pageIndex + 5;      if (startcount < 1) { startcount = 1; } //为了避免输出的时候产生负数，设置如果小于1就从序号1开始      if (allpage < endcount) { endcount = allpage; }//页码+5的可能性就会产生最终输出序号大于总页码，那么就要将其控制在页码数之内       bool isFirst = pageIndex == 1;      bool isLast = pageIndex == allpage;       if (SetIsShowText)        pagestr.AppendFormat(SetTextFormat, total, pageIndex, allpage);       if (isFirst)      {        pagestr.Append("<span>首页</span> <span>上一页</span>");      }      else      {        pagestr.AppendFormat("<a href=/"{0}pageIndex=1/">首页</a> <a href=/"{0}pageIndex={1}/">上一页</a>", query_string, pre);      }      //中间页处理，这个增加时间复杂度，减小空间复杂度      for (int i = startcount; i <= endcount; i++)      {        bool isCurent = pageIndex == i;        if (isCurent)        {          pagestr.Append(" <a class=/"page_current/">" + i + "</a>");        }        else        {          pagestr.Append("  <a href=/"" + query_string + "pageIndex=" + i + "/">" + i + "</a>");        }       }      if (isLast)      {        pagestr.Append("<span>下一页</span> <span>末页</span>");      }      else      {        pagestr.Append(" <a href=/"" + query_string + "pageIndex=" + next + "/">下一页</a> <a href=/"" + query_string + "pageIndex=" + allpage + "/">末页</a>");      }      pagestr.AppendFormat("</div>");      return ConversionData(pagestr.ToString());    }     private string ConversionData(string page)    {      if (SetIsEnglish)      {        page= page.Replace("上一页", "Previous").Replace("下一页", "Next").Replace("总共", "total").Replace("当前", "Current").Replace("条", "records").Replace("首页", "First").Replace("末页", "Last");      }      if (SetIsAjax)      {        var matches = Regex.Matches(page, @"href/="".*?""",RegexOptions.Singleline);        if (matches != null && matches.Count > 0)        {          foreach (Match m in matches)          {            page = page.Replace(m.Value, string.Format("class=/"click/" onclick=/"ajaxPage('{0}')/"", Regex.Match(m.Value, string.Format(@"{0}/=(/d+)", SetPageIndexName)).Groups[1].Value));          }        }      }      return page;     }   } }