企业在做Asp.Net Mvc开发过程中，很多时候都是一些CRUD，最基本的就是一个列表页面，然后附带一些功能按钮。如果有数据列表，大多数就会涉及到对数据进行分页，这次就介绍一下Mvc PagedList控件分页的使用方法。Github PagedList链接 。
下面我通过新建Mvc项目来展示PagedList的使用方法。
一、新建BookLibrary解决方案
确定后，选择MVC
然后点击确定。
二、添加PagedList与PagedList.Mvc的程序包。
选择BookLibrary项目，鼠标右键选择“管理NuGet程序包”,在浏览框中输入PagedList.Mvc，选择最新稳定版，我这里选择4.5.0版本，点击安装，然后他会提示有依赖项
点击确定，他会自动安装PagedList与PagedList.Mvc程序包。同时看一下项目的Content文件夹，它会自动添加PagedList.css文件，这个是分页控件的样式表。
三、创建模型与上下文
1、创建Book模型类。
1 using System;
2
3 namespace BookLibrary.Models
4 {
5 public class Book
6 {
7 private Guid _Id;
8
9 public Guid Id
10 {
11 get { return _Id; }
12 set { _Id = value; }
13 }
14
15 private string _BookName;
16
17 public string BookName
18 {
19 get { return _BookName; }
20 set { _BookName = value; }
21 }
22
23 private decimal _Price;
24
25 public decimal Price
26 {
27 get { return _Price; }
28 set { _Price = value; }
29 }
30
31 private string _Author;
32
33 public string Author
34 {
35 get { return _Author; }
36 set { _Author = value; }
37 }
38
39 private int _Sort;
40
41 public int Sort
42 {
43 get { return _Sort; }
44 set { _Sort = value; }
45 }
46
47 }
48 }
2、通过管理NuGet程序包，添加EntityFramework程序包。
3、Web.config添加数据库链接字符串
1 <connectionStrings> 2 <add name="BookConnection" connectionString="DataBase=|DataDirectory|\Book.mdf;Data Source=.;Initial Catalog=Book;UID=sa;PWD=123qwe;Integrated Security=True" providerName="System.Data.SqlClient"/> 3 </connectionStrings>
4、创建BookContext上下文类
1 using System.Data.Entity;
2
3 namespace BookLibrary.Models
4 {
5 public class BookContext : DbContext
6 {
7 public BookContext() : base("BookConnection") { }
8 public DbSet<Book> Books { get; set; }
9 }
10 }
四、创建数据库初始化策略
在项目下新建DBInitializer文件夹，并新建BookInitializer类，使用数据库初始化策略
CreateDatabaseIfNotExists<BookContext>，在Seed中添加一些数据
1 using System;
2 using System.Collections.Generic;
3 using System.Data.Entity;
4 using BookLibrary.Models;
5
6 namespace BookLibrary.DBInitializer
7 {
8 public class BookInitializer:CreateDatabaseIfNotExists<BookContext>
9 {
10 protected override void Seed(BookContext context)
11 {
12 var bookList = new List<Book>();
13 for (int i = 0; i < 15; i++)
14 {
15 bookList.Add(new Book
16 {
17 Id = Guid.NewGuid(),
18 BookName = "你的善良必须有点锋芒",
19 Author = "慕颜歌",
20 Price = 50,
21 Sort=i
22 });
23 bookList.Add(new Book
24 {
25 Id = Guid.NewGuid(),
26 BookName = "月亮与六便士",
27 Author = "威廉.萨穆塞特.毛姆",
28 Price = 50,
29 Sort = i
30 });
31 bookList.Add(new Book
32 {
33 Id = Guid.NewGuid(),
34 BookName = "将来的你，一定会感谢现在拼命的自己",
35 Author = "汤木",
36 Price = 50,
37 Sort = i
38 });
39 bookList.Add(new Book
40 {
41 Id = Guid.NewGuid(),
42 BookName = "你只是看起来很努力",
43 Author = "李尚龙",
44 Price = 50,
45 Sort = i
46 });
47 bookList.Add(new Book
48 {
49 Id = Guid.NewGuid(),
50 BookName = "人性的弱点",
51 Author = "戴尔.卡耐基",
52 Price = 50,
53 Sort = i
54 });
55 bookList.Add(new Book
56 {
57 Id = Guid.NewGuid(),
58 BookName = "在痛苦的世界尽力而为",
59 Author = "俞敏洪",
60 Price = 50,
61 Sort = i
62 });
63 bookList.Add(new Book
64 {
65 Id = Guid.NewGuid(),
66 BookName = "做最好的自己",
67 Author = "李开复",
68 Price = 50,
69 Sort = i
70 });
71 bookList.Add(new Book
72 {
73 Id = Guid.NewGuid(),
74 BookName = "白夜行",
75 Author = "东野圭吾",
76 Price = 50,
77 Sort = i
78 });
79 bookList.Add(new Book
80 {
81 Id = Guid.NewGuid(),
82 BookName = "活着",
83 Author = "余华",
84 Price = 50,
85 Sort = i
86 });
87 bookList.Add(new Book
88 {
89 Id = Guid.NewGuid(),
90 BookName = "拆掉思维里的墙",
91 Author = "古典",
92 Price = 50,
93 Sort = i
94 });
95 bookList.Add(new Book
96 {
97 Id = Guid.NewGuid(),
98 BookName = "巨流河",
99 Author = "齐邦媛",
100 Price = 50,
101 Sort = i
102 });
103 }
104 context.Books.AddRange(bookList);
105 base.Seed(context);
106 }
107 }
108 }
在Web.config文件中entityFramework节点下添加如下配置
1 <contexts> 2 <context type="BookLibrary.Models.BookContext,BookLibrary"> 3 <databaseInitializer type="BookLibrary.DBInitializer.BookInitializer,BookLibrary"></databaseInitializer> 4 </context> 5 </contexts>
五、创建控制器与视图
新建BookController控制器
1 using PagedList;
2 using System.Configuration;
3 using System.Linq;
4 using System.Web.Mvc;
5 using BookLibrary.Models;
6
7 namespace BookLibrary.Controllers
8 {
9 public class BookController : Controller
10 {
11 /// <summary>
12 /// 数据库上下文
13 /// </summary>
14 private BookContext db;
15 public BookController()
16 {
17 db = new BookContext();
18 }
19
20 // GET: Book
21 public ActionResult Index(int? page)
22 {
23 ///书籍列表
24 var books = db.Books.OrderByDescending(p => p.Sort);
25
26
27 ///page为null时默认设置为1
28 var pageNumber = page ?? 1;
29
30 ///每页显示项目数量
31 var pageSize = 10;
32 if (ConfigurationManager.AppSettings["PageSize"] != null)
33 {
34 int.TryParse(ConfigurationManager.AppSettings["PageSize"], out pageSize);
35 }
36
37
38 ///进行分页生成model
39 IPagedList<Book> model = books.ToPagedList(pageNumber, pageSize);
40
41 return View(model);
42 }
43 }
44 }
创建视图
1 @model PagedList.IPagedList<BookLibrary.Models.Book>
2 @using PagedList.Mvc;
3 @{
4 ViewBag.Title = "书籍列表";
5 }
6 <link href="~/Content/PagedList.css" rel=" stylesheet" />
7 <h2>@ViewBag.Title</h2>
8 <style>
9 .highLight {
10 }
11
12 .highLight > a {
13 background-color: #dc6969 !important;
14 color: #ffffff !important;
15 font-weight: 500;
16 font-family: ‘黑体‘;
17 /*font-size:15px;*/
18 }
19 </style>
20 <table class="table">
21 <thead>
22 <tr>
23 <th>
24 书名
25 </th>
26 <th>
27 作者
28 </th>
29 <th>
30 价格
31 </th>
32 </tr>
33 </thead>
34 <tbody>
35 @if (Model != null && Model.Count > 0)
36 {
37 foreach (var book in Model)
38 {
39 <tr>
40 <td>@Html.DisplayFor(p => book.BookName)</td>
41 <td>@Html.DisplayFor(p => book.Author)</td>
42 <td>@Html.DisplayFor(p => book.Price)元</td>
43 </tr>
44 }
45
46 }
47 else
48 {
49 <tr><td colspan="3">---</td></tr>
50 }
51
52 </tbody>
53 </table>
54 @Html.PagedListPager(Model, page => Url.Action("Index", "Book", new { page = page }), new PagedListRenderOptions
55 {
56 DisplayItemSliceAndTotal = true,
57 Display = PagedListDisplayMode.IfNeeded,
58 ItemSliceAndTotalFormat = "显示{0}页到{1}页,共{2}条",
59 //LinkToNextPageFormat = "?",
60 LinkToNextPageFormat = ">>",
61 LinkToLastPageFormat = "Last",
62 DisplayLinkToLastPage = PagedListDisplayMode.Always,
63 LinkToFirstPageFormat = "First",
64 DisplayLinkToFirstPage = PagedListDisplayMode.Always,
65 LinkToPreviousPageFormat = "<<",
66 // LinkToPreviousPageFormat = "?",
67 DisplayEllipsesWhenNotShowingAllPageNumbers = true,
68 DisplayPageCountAndCurrentLocation = true,
69 PageCountAndCurrentLocationFormat = "当前第{0}页,共{1}页",
70 ClassToApplyToLastListItemInPager = "highLight",
71 ClassToApplyToFirstListItemInPager = "highLight",
72 LiElementClasses = new List<string> { "highLight" }
73
74 })
最终的项目结构如下
然后运行项目，输入控制器名字/Book，最终效果如下
如果自己要更改分页样式的话，可以看一下PagedListRenderOptions这个类，配置还是很灵活的。
原文地址：https://www.cnblogs.com/Harley520/p/9872249.html
时间： 2024-08-02 14:51:02