简单好用的ASP.NET分页类（支持AJAX、自定义文字）

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=\\"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：

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

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 = "总共:{0} 条 当前:{1}/{2} ";

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("首页 上一页");

}

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("下一页 末页");

}

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;

}