小白写的一个ASP.NET分页控件，仅供娱乐
无聊，第一次写博客，自己动手写了一个分页控件。由于我是新手，有很多地方写得不够好，希望各位大牛多多指正。哈哈哈
1 /// <summary> 2 /// 分页控件 3 /// </summary> 4 public class Pager 5 { 6 /// <summary> 7 /// 每页记录行数参数名称 8 /// </summary> 9 public string PageSizeName { get; set; } 10 /// <summary> 11 /// 分页当前索引页参数名称 12 /// </summary> 13 public string PageIndexName { get; set; } 14 15 /// <summary> 16 /// 每页记录行数 17 /// </summary> 18 public int PageSize { get; private set; } 19 /// <summary> 20 /// 分页当前索引页 21 /// </summary> 22 public int PageIndex { get; private set; } 23 /// <summary> 24 /// 总记录行数 25 /// </summary> 26 public int TotalCount { get; private set; } 27 /// <summary> 28 /// 分页摁钮最大显示数量 29 /// </summary> 30 public int MaxDisplayCount { get; set; } 31 32 /// <summary> 33 /// 是否显示上一页摁钮 34 /// </summary> 35 public bool ShowPrevPage { get; set; } 36 /// <summary> 37 /// 是否显示下一页摁钮 38 /// </summary> 39 public bool ShowNextPage { get; set; } 40 /// <summary> 41 /// 是否显示第一页摁钮 42 /// </summary> 43 public bool ShowFirstPage { get; set; } 44 /// <summary> 45 /// 是否显示最后一页摁钮 46 /// </summary> 47 public bool ShowLastPage { get; set; } 48 49 /// <summary> 50 /// 上一页摁钮显示文本 51 /// </summary> 52 public string PrevPageText { get; set; } 53 /// <summary> 54 /// 下一页摁钮显示文本 55 /// </summary> 56 public string NextPageText { get; set; } 57 /// <summary> 58 /// 第一页摁钮显示文本 59 /// </summary> 60 public string FirstPageText { get; set; } 61 /// <summary> 62 /// 最后一页摁钮显示文本 63 /// </summary> 64 public string LastPageText { get; set; } 65 66 /// <summary> 67 /// 上一页摁钮样式 68 /// </summary> 69 public string PrevPageClass { get; set; } 70 /// <summary> 71 /// 下一页摁钮样式 72 /// </summary> 73 public string NextPageClass { get; set; } 74 /// <summary> 75 /// 第一页摁钮样式 76 /// </summary> 77 public string FirstPageClass { get; set; } 78 /// <summary> 79 /// 最后一页摁钮样式 80 /// </summary> 81 public string LastPageClass { get; set; } 82 83 /// <summary> 84 /// 普通分页摁钮样式 85 /// </summary> 86 public string ANormalClass { get; set; } 87 /// <summary> 88 /// 选中分页摁钮样式 89 /// </summary> 90 public string ACurrentClass { get; set; } 91 92 /// <summary> 93 /// 分页控件构造函数 94 /// </summary> 95 /// <param name="PageIndex">当前选中页索引</param> 96 /// <param name="PageSize">每页显示记录行数</param> 97 /// <param name="TotalCount">总记录行数</param> 98 /// <param name="UrlAndQuery">分页控件回传地址</param> 99 public Pager(int PageIndex, int PageSize, int TotalCount) 100 { 101 this.PageSize = PageSize; 102 this.PageIndex = PageIndex; 103 this.TotalCount = TotalCount; 104 this.MaxDisplayCount = 10; 105 106 this.PageSizeName = "PageSize"; 107 this.PageIndexName = "PageIndex"; 108 this.ACurrentClass = "current"; 109 110 this.ShowPrevPage = true; 111 this.ShowNextPage = true; 112 this.ShowFirstPage = true; 113 this.ShowLastPage = true; 114 115 this.PrevPageText = "<"; 116 this.NextPageText = ">"; 117 this.FirstPageText = "|<"; 118 this.LastPageText = ">|"; 119 } 120 121 /// <summary> 122 /// 生成分页控件Html代码段 123 /// </summary> 124 /// <returns></returns> 125 public string GeneratePagerHtml() 126 { 127 // 解析Url，对分页索引键值进行特殊处理 128 var request = HttpContext.Current.Request; 129 var keys = request.QueryString.AllKeys; 130 var paramList = new List<string>(); 131 if (keys.HasItem()) 132 { 133 foreach (var key in keys) 134 { 135 if (key == PageIndexName) 136 { 137 continue; 138 } 139 var value = HttpUtility.UrlEncode(request.QueryString[key]); 140 paramList.Add(string.Format("{0}={1}", key, value)); 141 } 142 } 143 paramList.Add(string.Format("{0}=", PageIndexName)); 144 var query = paramList.Join("&"); 145 146 // 对分页摁钮显示的数量和范围做处理 147 var PageCount = (int)Math.Ceiling((double)TotalCount / PageSize); 148 var startPage = PageIndex - MaxDisplayCount / 2 + 1; 149 startPage = startPage < 1 ? 1 : startPage; 150 var endPage = startPage + MaxDisplayCount - 1; 151 endPage = endPage > PageCount ? PageCount : endPage; 152 startPage = endPage - MaxDisplayCount + 1; 153 startPage = startPage < 1 ? 1 : startPage; 154 155 var a = "<a href=\"?{0}{1}\" class=\"{2}\">{3}</a>"; 156 var aString = new StringBuilder(); 157 for (var nowPage = startPage; nowPage <= endPage; ++nowPage) 158 { 159 var nowAClass = nowPage == PageIndex ? ACurrentClass : ANormalClass; 160 aString.AppendFormat(a, query, nowPage, nowAClass, nowPage); 161 } 162 163 // 对上一页摁钮做处理 164 string PrevPage = null; 165 if (ShowPrevPage) 166 { 167 var PrevPageIndex = PageIndex - 1; 168 PrevPageIndex = PrevPageIndex < 1 ? 1 : PrevPageIndex; 169 PrevPage = string.Format(a, query, PrevPageIndex, PrevPageClass, PrevPageText); 170 } 171 172 // 对下一页摁钮做处理 173 string NextPage = null; 174 if (ShowNextPage) 175 { 176 var NextPageIndex = PageIndex + 1; 177 NextPageIndex = NextPageIndex > PageCount ? PageCount : NextPageIndex; 178 NextPage = string.Format(a, query, NextPageIndex, NextPageClass, NextPageText); 179 } 180 181 // 对第一页摁钮做处理 182 string FirstPage = null; 183 if (ShowFirstPage) 184 { 185 FirstPage = string.Format(a, query, 1, FirstPageClass, FirstPageText); 186 } 187 188 // 对最后一页摁钮做处理 189 string LastPage = null; 190 if (ShowLastPage) 191 { 192 LastPage = string.Format(a, query, PageCount, LastPageClass, LastPageText); 193 } 194 195 // 分页控件Html代码段 196 var htmlTemp = "<div>{0}{1}{2}{3}{4}</div><div>第 {5}/{6} 页，{7} 条/页，共 {8} 条记录</div>"; 197 var PagerHtml = string.Format(htmlTemp, FirstPage, PrevPage, aString, NextPage, LastPage, PageIndex, PageCount, PageSize, TotalCount); 198 199 return PagerHtml; 200 } 201 }
Default.aspx.cs:
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using System.Web.UI; 6 using System.Web.UI.WebControls; 7 using AspNetPager; 8 9 namespace Test5 10 { 11 public partial class _Default : System.Web.UI.Page 12 { 13 public int PageIndex 14 { 15 get 16 { 17 var pageIndex = 1; 18 try 19 { 20 pageIndex = Convert.ToInt32(Request.QueryString["PageIndex"].ToString()); 21 } 22 catch { } 23 return pageIndex; 24 } 25 } 26 27 public int PageSize 28 { 29 get 30 { 31 var PageSize = 8; 32 try 33 { 34 PageSize = Convert.ToInt32(Request.QueryString["PageSize"].ToString()); 35 } 36 catch { } 37 return PageSize; 38 } 39 } 40 41 protected void Page_Load(object sender, EventArgs e) 42 { 43 var pager = new Pager(PageIndex, PageSize, 100); 44 this.Pager.InnerHtml = pager.CeneratePagerHtml(); 45 } 46 } 47 }
Default.aspx:
1 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Test5._Default" %> 2 3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 4 <html xmlns="http://www.w3.org/1999/xhtml"> 5 <head runat="server"> 6 <title></title> 7 <style type="text/css"> 8 .pager a 9 { 10 color: Blue; 11 width: 40px; 12 height: 25px; 13 border: 1px solid #CCC; 14 margin: 0px 5px; 15 text-align: center; 16 line-height: 25px; 17 vertical-align: middle; 18 text-decoration: none; 19 display: inline-block; 20 } 21 .pager a:hover, .pager a.current 22 { 23 background-color: #555; 24 color: White; 25 } 26 </style> 27 </head> 28 <body> 29 <form id="form1" runat="server"> 30 <div id="Pager" runat="server" class="pager"> 31 </div> 32 </form> 33 </body> 34 </html>
