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

 /// <summary>

     /// 分页控件

     /// </summary>

     public class Pager

     {

         /// <summary>

         /// 每页记录行数参数名称

         /// </summary>

         public string PageSizeName { get; set; }

         /// <summary>

         /// 分页当前索引页参数名称

         /// </summary>

         public string PageIndexName { get; set; }

         /// <summary>

         /// 每页记录行数

         /// </summary>

         public int PageSize { get; private set; }

         /// <summary>

         /// 分页当前索引页

         /// </summary>

         public int PageIndex { get; private set; }

         /// <summary>

         /// 总记录行数

         /// </summary>

         public int TotalCount { get; private set; }

         /// <summary>

         /// 分页摁钮最大显示数量

         /// </summary>

         public int MaxDisplayCount { get; set; }

         /// <summary>

         /// 是否显示上一页摁钮

         /// </summary>

         public bool ShowPrevPage { get; set; }

         /// <summary>

         /// 是否显示下一页摁钮

         /// </summary>

         public bool ShowNextPage { get; set; }

         /// <summary>

         /// 是否显示第一页摁钮

         /// </summary>

         public bool ShowFirstPage { get; set; }

         /// <summary>

         /// 是否显示最后一页摁钮

         /// </summary>

         public bool ShowLastPage { get; set; }

         /// <summary>

         /// 上一页摁钮显示文本

         /// </summary>

         public string PrevPageText { get; set; }

         /// <summary>

         /// 下一页摁钮显示文本

         /// </summary>

         public string NextPageText { get; set; }

         /// <summary>

         /// 第一页摁钮显示文本

         /// </summary>

         public string FirstPageText { get; set; }

         /// <summary>

         /// 最后一页摁钮显示文本

         /// </summary>

         public string LastPageText { get; set; }

         /// <summary>

         /// 上一页摁钮样式

         /// </summary>

         public string PrevPageClass { get; set; }

         /// <summary>

         /// 下一页摁钮样式

         /// </summary>

         public string NextPageClass { get; set; }

         /// <summary>

         /// 第一页摁钮样式

         /// </summary>

         public string FirstPageClass { get; set; }

         /// <summary>

         /// 最后一页摁钮样式

         /// </summary>

         public string LastPageClass { get; set; }

         /// <summary>

         /// 普通分页摁钮样式

         /// </summary>

         public string ANormalClass { get; set; }

         /// <summary>

         /// 选中分页摁钮样式

         /// </summary>

         public string ACurrentClass { get; set; }

         /// <summary>

         /// 分页控件构造函数

         /// </summary>

         /// <param name="PageIndex">当前选中页索引</param>

         /// <param name="PageSize">每页显示记录行数</param>

         /// <param name="TotalCount">总记录行数</param>

         /// <param name="UrlAndQuery">分页控件回传地址</param>

         public Pager(int PageIndex, int PageSize, int TotalCount)

         {

             this.PageSize = PageSize;

             this.PageIndex = PageIndex;

             this.TotalCount = TotalCount;

             this.MaxDisplayCount = ;

             this.PageSizeName = "PageSize";

             this.PageIndexName = "PageIndex";

             this.ACurrentClass = "current";

             this.ShowPrevPage = true;

             this.ShowNextPage = true;

             this.ShowFirstPage = true;

             this.ShowLastPage = true;

             this.PrevPageText = "<";

             this.NextPageText = ">";

             this.FirstPageText = "|<";

             this.LastPageText = ">|";

         }

         /// <summary>

         /// 生成分页控件Html代码段

         /// </summary>

         /// <returns></returns>

         public string GeneratePagerHtml()

         {

             // 解析Url，对分页索引键值进行特殊处理

             var request = HttpContext.Current.Request;

             var keys = request.QueryString.AllKeys;

             var paramList = new List<string>();

             if (keys.HasItem())

             {

                 foreach (var key in keys)

                 {

                     if (key == PageIndexName)

                     {

                         continue;

                     }

                     var value = HttpUtility.UrlEncode(request.QueryString[key]);

                     paramList.Add(string.Format("{0}={1}", key, value));

                 }

             }

             paramList.Add(string.Format("{0}=", PageIndexName));

             var query = paramList.Join("&");

             // 对分页摁钮显示的数量和范围做处理

             var PageCount = (int)Math.Ceiling((double)TotalCount / PageSize);

             var startPage = PageIndex - MaxDisplayCount /  + ;

             startPage = startPage <  ?  : startPage;

             var endPage = startPage + MaxDisplayCount - ;

             endPage = endPage > PageCount ? PageCount : endPage;

             startPage = endPage - MaxDisplayCount + ;

             startPage = startPage <  ?  : startPage;

             var a = "<a href=\"?{0}{1}\" class=\"{2}\">{3}</a>";

             var aString = new StringBuilder();

             for (var nowPage = startPage; nowPage <= endPage; ++nowPage)

             {

                 var nowAClass = nowPage == PageIndex ? ACurrentClass : ANormalClass;

                 aString.AppendFormat(a, query, nowPage, nowAClass, nowPage);

             }

             // 对上一页摁钮做处理

             string PrevPage = null;

             if (ShowPrevPage)

             {

                 var PrevPageIndex = PageIndex - ;

                 PrevPageIndex = PrevPageIndex <  ?  : PrevPageIndex;

                 PrevPage = string.Format(a, query, PrevPageIndex, PrevPageClass, PrevPageText);

             }

             // 对下一页摁钮做处理

             string NextPage = null;

             if (ShowNextPage)

             {

                 var NextPageIndex = PageIndex + ;

                 NextPageIndex = NextPageIndex > PageCount ? PageCount : NextPageIndex;

                 NextPage = string.Format(a, query, NextPageIndex, NextPageClass, NextPageText);

             }

             // 对第一页摁钮做处理

             string FirstPage = null;

             if (ShowFirstPage)

             {

                 FirstPage = string.Format(a, query, , FirstPageClass, FirstPageText);

             }

             // 对最后一页摁钮做处理

             string LastPage = null;

             if (ShowLastPage)

             {

                 LastPage = string.Format(a, query, PageCount, LastPageClass, LastPageText);

             }

             // 分页控件Html代码段

             var htmlTemp = "<div>{0}{1}{2}{3}{4}</div><div>第 {5}/{6} 页，{7} 条/页，共 {8} 条记录</div>";

             var PagerHtml = string.Format(htmlTemp, FirstPage, PrevPage, aString, NextPage, LastPage, PageIndex, PageCount, PageSize, TotalCount);

             return PagerHtml;

         }

     }

Default.aspx.cs:

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Web;

 using System.Web.UI;

 using System.Web.UI.WebControls;

 using AspNetPager;

 namespace Test5

 {

     public partial class _Default : System.Web.UI.Page

     {

         public int PageIndex

         {

             get

             {

                 var pageIndex = ;

                 try

                 {

                     pageIndex = Convert.ToInt32(Request.QueryString["PageIndex"].ToString());

                 }

                 catch { }

                 return pageIndex;

             }

         }

         public int PageSize

         {

             get

             {

                 var PageSize = ;

                 try

                 {

                     PageSize = Convert.ToInt32(Request.QueryString["PageSize"].ToString());

                 }

                 catch { }

                 return PageSize;

             }

         }

         protected void Page_Load(object sender, EventArgs e)

         {

             var pager = new Pager(PageIndex, PageSize, );

             this.Pager.InnerHtml = pager.CeneratePagerHtml();

         }

     }

 }

Default.aspx:

 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Test5._Default" %>

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 <html xmlns="http://www.w3.org/1999/xhtml">

 <head runat="server">

     <title></title>

     <style type="text/css">

         .pager a

         {

             color: Blue;

             width: 40px;

             height: 25px;

             border: 1px solid #CCC;

             margin: 0px 5px;

             text-align: center;

             line-height: 25px;

             vertical-align: middle;

             text-decoration: none;

             display: inline-block;

         }

         .pager a:hover, .pager a.current

         {

             background-color: #555;

             color: White;

         }

     </style>

 </head>

 <body>

     <form id="form1" runat="server">

     <div id="Pager" runat="server" class="pager">

     </div>

     </form>

 </body>

 </html>

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小白写的一个ASP.NET分页控件，仅供娱乐

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