C# .Net MVC Razor 视图静态分页导航栏生成器

这里贴出3个重要组成部分

1.分页导航栏主算法代码（包括 @Html 扩展方法）

2.HTML 页面调用代码(包括导航栏样式)

3.Controller 控制器代码

4.测试路径：http://www.****.com/EBusiness/Paination/2?pc=10（这里只是个本机测试url实例，不同机子测试 域名部分（www.*****.com）需要替换一下）

   参数说明：pc（pageCount），总页数

   其中的 2 是：pageIndex ，当前页索引；使用的是默认路由也就是 {controller}/{action}/{id} 形式的路由定义

5.效果展示

注：实现效果简单，如同学们有时间丰富一下配置参数，让其可设置性更强些。

      丰富完了帖回来我也用哈

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1.分页导航栏主算法代码

using System;
 using System.Text;
 using System.Web.Mvc;namespace EB.Ctrl.Utility
 {
   #region Mvc 分页栏扩展方法
   /// <summary>
   ///  Mvc 分页栏扩展方法
   /// </summary>
   public static class HtmlPaginationBar
   {
     /// <summary>
     /// 生成分页栏（页面调用 @Html.PaginationBar）
     /// </summary>
     /// <param name="helper"></param>
     /// <param name="bar">分页栏生成器</param>
     /// <returns></returns>
     public static MvcHtmlString PaginationBar(this HtmlHelper helper, PaginationBarBilder bar)
     {
       return new MvcHtmlString(bar.GenPaginationHtml());
     }
   }  #endregion
  #region 分页条参数
   /// <summary>
   /// 分页条参数
   /// </summary>
   public class PageBarPars
   {
     /// <summary>
     /// 总页数
     /// </summary>
     public int PageCount { set; get; }
     /// <summary>
     /// 当前页索引
     /// </summary>
     public int PageIndex { set; get; }
   }
   #endregion  #region 分页导航栏生成器
   public class PaginationBarBilder
   {
     /// <summary>
     /// 分页导航栏生成器
     /// </summary>
     /// <param name="url">页面地址模板，其中改变的页面索引部分使用{0}替换</param>
     /// <param name="pageCount">总页数</param>
     /// <param name="pageIndex">当前页索引</param>
     public PaginationBarBilder(string url,int pageCount,int pageIndex)
     {
       m_url = url;
       m_pageCount = pageCount;
       m_pageIndex = pageIndex;
     }    private int m_pageIndex = 0;
     private int m_pageCount = 0;
     private string m_url = string.Empty;
     private int m_offset = 3;
     private StringBuilder m_html = new StringBuilder();    /// <summary>
     /// 生成分页m_html代码
     /// </summary>
     /// <returns></returns>
     public string GenPaginationHtml()
     {
       StringBuilder m_html = new StringBuilder();
       m_html.Append("<div id='pagination'>");
       m_html.Append(GenPrevious());
       m_html.Append(GenLeftAnchor());
       m_html.Append(GenMidArea());
       m_html.Append(GenRightAnchor());
       m_html.Append(GenNext());
       m_html.Append("</div>");
       return m_html.ToString();
     }
     /// <summary>
     /// 生成上一页
     /// </summary>
     private string GenPrevious()
     {
       StringBuilder m_html = new StringBuilder();
       string href = string.Empty;
       if (m_pageIndex <= 0 || m_pageCount<=1)
       {
         m_html.Append("<span class='current prev'>前一页</span>");
         return m_html.ToString();
       }
       href = string.Format(m_url, m_pageIndex-1);
       m_html.Append(
         string.Format("<a class='prev' href='{0}'>前一页</a>", href));
       return m_html.ToString();
     }
     /// <summary>
     /// 生成后一页
     /// </summary>
     private string GenNext()
     {
       StringBuilder m_html = new StringBuilder();
       string href = string.Empty;
       if (m_pageIndex >= m_pageCount-1)
       {
         m_html.Append("<span class='current next'>后一页</span>");
         return m_html.ToString();
       }
       href = string.Format(m_url, ++m_pageIndex);
       m_html.Append(
         string.Format("<a class='prev' href='{0}'>后一页</a>", href));
       return m_html.ToString();
     }
     /// <summary>
     /// 左停靠连接
     /// </summary>
     private string GenLeftAnchor()
     {
       StringBuilder m_html = new StringBuilder();
       string href = string.Empty;
       if (m_pageIndex - m_offset > 0)
       {
         href = string.Format(m_url, 0);
         m_html.Append(string.Format("<a href='{0}'>1</a>", href));
       }      if (m_pageIndex - m_offset > 1)
         m_html.Append(string.Format("<span>...</span>"));
       
       return m_html.ToString();
     }
     /// <summary>
     /// 右停靠连接
     /// </summary>
     private string GenRightAnchor()
     {
       if (m_pageIndex + m_offset >= m_pageCount - 1)
         return string.Empty;      StringBuilder m_html = new StringBuilder();
       string href = string.Empty;      if (m_pageIndex + m_offset < m_pageCount-2)
         m_html.Append(string.Format("<span>...</span>"));      if (m_pageIndex+m_offset<m_pageCount)
       {
         href = string.Format(m_url, m_pageCount - 1);
         m_html.Append(string.Format("<a href='{0}'>{1}</a>", href,m_pageCount));
       }      return m_html.ToString();
     }
     /// <summary>
     /// 生成中间分页按钮部分
     /// </summary>
     private string GenMidArea()
     {
       StringBuilder m_html = new StringBuilder();
       string href = string.Empty;
       if (m_pageCount == 1)
       {
         m_html.Append("<span class='current'>1</span>");
         return m_html.ToString();
       }
       Action<int> addHtml = (index => 
       {
         if (index == m_pageIndex)
         {
           href = string.Format("<span class='current'>{0}</span>", index+1);
           m_html.Append(href);
           return;
         }
         href = string.Format(m_url,index);
         href = string.Format("<a href='{0}'>{1}</a>", href, index + 1);
         m_html.Append(href);
       });      int start = 0;
       int end = 0;
       if (m_pageIndex < m_offset)
       {
         start = 0;
         if (m_offset + m_offset < m_pageCount)
           end = m_offset + m_offset;
         else
           end = m_pageCount - 1;
       }
       else
       {
         start = m_pageIndex - m_offset;
         if (m_pageIndex + m_offset >= m_pageCount)
           end = m_pageCount-1;
         else
           end = m_pageIndex + m_offset;
       }      for (int i = 0; i < m_pageCount; i++)
       {
         if (i < start || i > end)
           continue;
         addHtml(i);
       }      return m_html.ToString();
     }
   }
   #endregion
 }

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2.HTML 页面调用代码(包括导航栏样式)

@{
   Layout = null;
 }
 @using EB.Ctrl.Utility;
 <!DOCTYPE html><html>
 <head>
     <title>Paination</title>
     <style>   
     #pagination{float:right}    #pagination a {
         text-decoration: none;
      border: 1px solid #AAE;
      color: #666;
     }
     #pagination a:hover {
      BORDER-BOTTOM: #c00 1px solid; BORDER-LEFT: #c00 1px solid; BACKGROUND: #c00; COLOR: #fff; BORDER-TOP: #c00 1px solid; BORDER-RIGHT: #c00 1px solid; TEXT-DECORATION: none
     }
     #pagination a, #pagination span {
         display: inline-block;
         padding: 0.1em 0.4em;
         margin-right: 5px;
      margin-bottom: 5px;
     }    #pagination .current {
         background: #bc0057;
         color: #fff;
      border: 1px solid #c00;
     }    #pagination .current.prev, #pagination .current.next{
      color:#999;
      border-color:#999;
      background:#fff;
     }
     </style>
 </head>
   <body>
     <!--使用这个扩展页面必须引用 using EB.Ctrl.Utility 命名空间-->
     @Html.PaginationBar(new PaginationBarBilder("​​​http://www.****.com/EBusiness/Paination/{0}?pc​​​=" + this.ViewBag.PagePars.PageCount.ToString(), this.ViewBag.PagePars.PageCount, this.ViewBag.PagePars.PageIndex))
   </body>
 </html>

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3.Controller 控制器代码

using System.Web.Mvc;
 using EB.Ctrl.Utility;
 using EB.Sys.Extension;namespace EB.Ctrl.Controllers
 {
   public class EBusinessController : Controller
   {    public ActionResult Paination(string id,string pc)
     {
       PageBarPars pars = new PageBarPars();
       pars.PageCount = pc.GetInt();
       pars.PageIndex = id.GetInt();
       this.ViewBag.PagePars = pars;
       return View();
     }
   }
 }