自定义MVC HtmlHelpe之分页

还在为mvc中没有一个分页htmlhelper 而烦恼吗

那我们何不自己写一个HtmlHelpe;

*首先命名空间一定是System.Web.Mvc

下面是源码

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Web;
 6 
 7 namespace System.Web.Mvc
 8 {
 9     public static class MyHtmlHelper
10     {
11         //主要就是输出分页的超级链接的标签
12         //自定义分页Helper扩展
13         public static HtmlString ShowPageNavigate(this HtmlHelper htmlHelper, int currentPage, int pageSize, int totalCount)
14         {
15             var redirectTo = htmlHelper.ViewContext.RequestContext.HttpContext.Request.Url.AbsolutePath;
16             pageSize = pageSize <= 0 ? 3 : pageSize;
17             var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数
18             var output = new StringBuilder();
19             if (totalPages > 1)
20             {
21                 //if (currentPage != 1)
22                 {//处理首页连接
23                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex=1&pageSize={1}'>首页</a> ", redirectTo, pageSize);
24                 }
25                 if (currentPage > 1)
26                 {//处理上一页的连接
27                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>上一页</a> ", redirectTo, currentPage - 1, pageSize);
28                 }
29                 else
30                 {
31                     // output.Append("<span class='pageLink'>上一页</span>");
32                 }
33 
34                 output.Append(" ");
35                 int currint = 5;
36                 for (int i = 0; i <= 10; i++)
37                 {//一共最多显示10个页码,前面5个,后面5个
38                     if ((currentPage + i - currint) >= 1 && (currentPage + i - currint) <= totalPages)
39                     {
40                         if (currint == i)
41                         {//当前页处理
42                             //output.Append(string.Format("[{0}]", currentPage));
43                             output.AppendFormat("<a class='cpb' href='{0}?pageIndex={1}&pageSize={2}'>{3}</a> ", redirectTo, currentPage, pageSize, currentPage);
44                         }
45                         else
46                         {//一般页处理
47                             output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>{3}</a> ", redirectTo, currentPage + i - currint, pageSize, currentPage + i - currint);
48                         }
49                     }
50                     output.Append(" ");
51                 }
52                 if (currentPage < totalPages)
53                 {//处理下一页的链接
54                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>下一页</a> ", redirectTo, currentPage + 1, pageSize);
55                 }
56                 else
57                 {
58                     //output.Append("<span class='pageLink'>下一页</span>");
59                 }
60                 output.Append(" ");
61                 if (currentPage != totalPages)
62                 {
63                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>末页</a> ", redirectTo, totalPages, pageSize);
64                 }
65                 output.Append(" ");
66             }
67             output.AppendFormat("第{0}页 / 共{1}页", currentPage, totalPages);//这个统计加不加都行
68 
69             return new HtmlString(output.ToString());
70         }
71     }
72 }

  调用

  @Html.ShowPageNavigate(pageIndex,pageSize,totalCount)  ;

 

posted @ 2017-07-11 13:20  墨笔淡红尘  阅读(325)  评论(0编辑  收藏  举报