詳解一個ASP.NET MVC分頁效果

作者：憑海觀瀾 2010-01-26 13:15:42

開發(fā) 后端

在這里我們將介紹的是一個ASP.NET MVC分頁效果，希望本文能為大家更好的使用ASP.NET MVC框架有所幫助。

在這里我們將談到的是ASP.NET MVC框架中的一個HTML輔助類，希望通過本文能對大家了解ASP.NET MVC分頁有所幫助。

#T#

本人寫的一個ASP.NET MVC分頁Helper，支持普通分頁（也就是，首頁、上一頁、下一頁、末頁等），綜合分頁（普通分頁和數(shù)字分頁的綜合）。下面是ASP.NET MVC分頁效果：

LIST分頁

分頁代碼：

PagerHelper.cs

-->  1 using System;
  2 using System.Collections.Generic;
  3 using System.Collections.Specialized;
  4 using System.Linq;
  5 using System.Web;
  6 using System.Text;
  7 using System.Web.Mvc;
  8 using System.Web.Routing;
  9 using System.Data.Objects.DataClasses;
10 namespace System.Web.Mvc
11 {
12     public static class PagerHelper
13     {
14         ///

15         /// 分頁
16         ///
17         ///
18         /// 分頁id
19         /// 當前頁
20         /// 分頁尺寸
21         /// 記錄總數(shù)
22         /// 分頁頭標簽屬性
23         /// 分頁樣式
24         /// 分頁模式
25         ///
26         public static string Pager(this HtmlHelper helper, string id, int currentPageIndex,

int pageSize, int recordCount, object htmlAttributes, string className,PageMode mode)
27         {
28             TagBuilder builder = new TagBuilder("table");
29             builder.IdAttributeDotReplacement = "_";
30             builder.GenerateId(id);
31             builder.AddCssClass(className);
32             builder.MergeAttributes(new RouteValueDictionary(htmlAttributes));
33             builder.InnerHtml = GetNormalPage(currentPageIndex, pageSize, recordCount,mode);
34             return builder.ToString();
35         }
36         ///

37         /// 分頁
38         ///
39         ///
40         /// 分頁id
41         /// 當前頁
42         /// 分頁尺寸
43         /// 記錄總數(shù)
44         /// 分頁樣式
45         ///
46         public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount, string className)
47         {
48             return Pager(helper, id, currentPageIndex, pageSize, recordCount, null, className,PageMode.Normal);
49         }
50         ///

51         /// 分頁
52         ///
53         ///
54         /// 分頁id
55         /// 當前頁
56         /// 分頁尺寸
57         /// 記錄總數(shù)
58         ///
59         public static string Pager(this HtmlHelper helper,string id,int currentPageIndex,int pageSize,int recordCount)
60         {
61             return Pager(helper, id, currentPageIndex, pageSize, recordCount,null);
62         }
63         ///

64         /// 分頁
65         ///
66         ///
67         /// 分頁id
68         /// 當前頁
69         /// 分頁尺寸
70         /// 記錄總數(shù)
71         /// 分頁模式
72         ///
73         public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount,PageMode mode)
74         {
75             return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,mode);
76         }
77         ///

78         /// 分頁
79         ///
80         ///
81         /// 分頁id
82         /// 當前頁
83         /// 分頁尺寸
84         /// 記錄總數(shù)
85         /// 分頁樣式
86         /// 分頁模式
87         ///
88         public static string Pager(this HtmlHelper helper, string id, i

nt currentPageIndex, int pageSize, int recordCount,string className, PageMode mode)
89         {
90             return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,className,mode);
91         }
92         ///

93         /// 獲取普通分頁
94         ///
95         ///
96         ///
97         ///
98         ///
99         private static string GetNormalPage(int currentPageIndex, int pageSize, int recordCount,PageMode mode)
100         {
101             int pageCount = (recordCount%pageSize ==0?recordCount/pageSize:recordCount/pageSize+1);
102             StringBuilder url = new StringBuilder();
103             url.Append(HttpContext.Current.Request.Url.AbsolutePath+"?page={0}");
104             NameValueCollection collection = HttpContext.Current.Request.QueryString;
105             string[] keys = collection.AllKeys;
106             for (int i = 0; i < keys.Length; i++)
107             {
108                 if (keys[i].ToLower() != "page")
109                     url.AppendFormat("&{0}={1}", keys[i], collection[keys[i]]);
110             }
111             StringBuilder sb = new StringBuilder();
112             sb.Append(" ");
113             sb.AppendFormat("總共{0}條記錄,共{1}頁,當前第{2}頁  ", recordCount, pageCount, currentPageIndex);
114             if (currentPageIndex == 1)
115                 sb.Append("首頁 ");
116             else
117             {
118                 string url1 = string.Format(url.ToString(), 1);
119                 sb.AppendFormat("首頁 ", url1);
120             }
121             if (currentPageIndex > 1)
122             {
123                 string url1 = string.Format(url.ToString(), currentPageIndex - 1);
124                 sb.AppendFormat("上一頁 ", url1);
125             }
126             else
127                 sb.Append("上一頁 ");
128             if(mode == PageMode.Numeric)
129                 sb.Append(GetNumericPage(currentPageIndex,pageSize,recordCount,pageCount,url.ToString()));
130             if (currentPageIndex < pageCount)
131             {
132                 string url1 = string.Format(url.ToString(), currentPageIndex+1);
133                 sb.AppendFormat("下一頁 ", url1);
134             }
135             else
136                 sb.Append("下一頁 ");
137
138             if (currentPageIndex == pageCount)
139                 sb.Append("末頁 ");
140             else
141             {
142                 string url1 = string.Format(url.ToString(), pageCount);
143                 sb.AppendFormat("末頁 ", url1);
144             }
145             return sb.ToString();
146         }
147         ///

148         /// 獲取數(shù)字分頁
149         ///
150         ///
151         ///
152         ///
153         ///
154         ///
155         ///
156         private static string GetNumericPage(int currentPageIndex, int pageSize, int recordCount, int pageCount,string url)
157         {
158             int k = currentPageIndex / 10;
159             int m = currentPageIndex % 10;
160             StringBuilder sb = new StringBuilder();
161             if (currentPageIndex / 10 == pageCount / 10)
162             {
163                 if (m == 0)
164                 {
165                     k--;
166                     m = 10;
167                 }
168                 else
169                     m = pageCount%10;
170             }
171             else
172                 m = 10;
173             for (int i = k * 10 + 1; i <= k * 10 + m; i++)
174             {
175                 if (i == currentPageIndex)
176                     sb.AppendFormat("{0} ", i);
177                 else
178                 {
179                     string url1 = string.Format(url.ToString(), i);
180                     sb.AppendFormat("{1} ",url1, i);
181                 }
182             }
183
184             return sb.ToString();
185         }
186     }
187     ///

188     /// 分頁模式
189     ///
190     public enum PageMode
191     {
192         ///

193         /// 普通分頁模式
194         ///
195         Normal,
196         ///

197         /// 普通分頁加數(shù)字分頁
198         ///
199         Numeric
200     }
201 }
202

PagerQuery.cs包含兩個屬性，一個是PageInfo實體類屬性Pager，包含RecordCount，CurrentPageIndex，PageSize三個屬性。一個是Model EntityList屬性。

代碼

 using System;  
 using System.Collections.Generic;  
 using System.Linq;  
 using System.Web;  
  namespace System.Web.Mvc  
 {  
     public class PagerQuery<TPager,TEntityList>  
     {  
        public PagerQuery(TPager pager, TEntityList entityList)  
        {  
            this.Pager = pager;  
            this.EntityList = entityList;  
        }  
        public TPager Pager { get; set; }  
        public TEntityList EntityList { get; set; }   
    }  
}

PageInfo.cs

代碼

 using System;  
  using System.Collections.Generic;  
  using System.Linq;  
  using System.Web;  
namespace System.Web.Mvc  
  {  
      public class PagerInfo  
      {  
         public int RecordCount { get; set; }  
         public int CurrentPageIndex { get; set; }  
         public int PageSize { get; set; }  
    }  
}

使用示例：

代碼

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" 
Inherits="System.Web.Mvc.ViewPage<PagerQuery<PagerInfo, IList<NewsArticleInfo>>>" %> 
 
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> 
    NewsList  
</asp:Content> 
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> 
<h2>NewsList</h2> 
 <table> <tr> <th></th> 
            <th>NoteID</th> 
            <th>Title</th> 
            <th>Author</th> 
            <th>Hit</th> 
            <th>ReplyNum</th> 
</tr> 
<% foreach (var item in Model.EntityList) { %> 
<tr><td> 
<%= Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) %> |  
<%= Html.ActionLink("Details", "NewsDetail", new { noteID=item.NoteID })%> 
</td><td> 
                <%= Html.Encode(item.NoteID) %> 
            </td> 
<td><%= Html.Encode(item.Title) %></td> 
<td><%= Html.Encode(item.Author)%></td> 
<td><%= Html.Encode(item.Hit)%></td> 
<td><%= Html.Encode(item.ReplyNum)%></td> 
 </tr> 
 <% } %></table> 
<p> 
<%=Html.Pager("pager",Model.Pager.CurrentPageIndex,Model.Pager.PageSize,Model.Pager.RecordCount,PageMode.Numeric) %></p> 
 
</asp:Content> 
controler：
[AcceptVerbs(HttpVerbs.Get)]  
ublic ActionResult NewsList(int boardID,int? page)  
{  
    PagerInfo pager = new PagerInfo();  
    NewsArticleInfo info = new NewsArticleInfo();  
    info.NewsBoard = new NewsBoardInfo();  
    info.NewsBoard.BoardID = boardID;  
    pager.RecordCount = Resolve().GetArticleDataList(info, ArticleTypeEnum.Pass);  
    pager.PageSize = 10;  
   pager.CurrentPageIndex = (page!=null?(int)page:1);  
   IList result = Resolve().GetArticleDataList(pager.CurrentPageIndex, pager.PageSize, ArticleTypeEnum.Pass, info);  
   PagerQuery> query = new PagerQuery>(pager,result);  
   return View(query);  
原文標題：一個MVC分頁Helper
鏈接：http://www.cnblogs.com/JackFeng/archive/2010/01/25/JackFeng.html

責任編輯：彭凡來源：博客園

ASP.NET MVC分頁