在做网站没用 JS UI控件时 很实用
用法：
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=https://www.jb51.net/article/\"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);
效果：
代码：
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=https://www.jb51.net/article/\"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=https://www.jb51.net/article/\"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>总记录数</param> /// <param>每页记录数</param> /// <param>当前页数</param> /// <param>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=https://www.jb51.net/article/\"{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=https://www.jb51.net/article/\"{0}pageIndex=1\">首页</a> <a href=https://www.jb51.net/article/\"{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=https://www.jb51.net/article/\"page_current\">" + i + "</a>"); } else { pagestr.Append(" <a href=https://www.jb51.net/article/\"" + query_string + "pageIndex=" + i + "https://www.jb51.net/article/\">" + i + "</a>"); } } if (isLast) { pagestr.Append("<span>下一页</span> <span>末页</span>"); } else { pagestr.Append(" <a href=https://www.jb51.net/article/\"" + query_string + "pageIndex=" + next + "https://www.jb51.net/article/\">下一页</a> <a href=https://www.jb51.net/article/\"" + query_string + "pageIndex=" + allpage + "https://www.jb51.net/article/\">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=https://www.jb51.net/article/\"click\" onclick=https://www.jb51.net/article/\"ajaxPage('{0}')\"", Regex.Match(m.Value, string.Format(@"{0}\=(\d+)", SetPageIndexName)).Groups[1].Value)); } } } return page; } } }
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