符合mvc思维的分页思想 

1.Model Student.cs
namespace WebApplication14.Models
{
    public class Student
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
    }
}


2.views　Index.cshtml



@{
    Layout = null;
}

<!DOCTYPE html>
@model WebApplication14.Models.Student
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <div>

        <table id="table1">
            <tr>
                <th>编号</th>
                <th>姓名</th>
                <th>年龄</th>

            </tr>
            @foreach (var stu in ViewData["stus"] as List<WebApplication14.Models.Student>)
            {
                <tr>
                    <td>@stu.Id</td>
                    <td>@stu.Name</td>
                    <td>@stu.Age</td>
                </tr>

 

            }
        </table>
        @MvcHtmlString.Create(ViewData["pager"] as string);

 

 

        </table>
    </div>
</body>
</html>

3.控制器代码  Controllers


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using WebApplication14.Models;

namespace WebApplication14.Controllers
{
    public class HomeController : Controller
    {
        public List<Student> GetStudents()
        {
            List<Student> stus = new List<Student>();
            for (int i = 1; i <= 58; i++)
            {
                stus.Add(new Student() { Id = i, Name = i.ToString(), Age = i });
            }
            return stus;
        }
        [HttpGet]
        public ActionResult Index()
        {

            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            int totalCount = GetStudents().Count;
            int pageSize = 3;
            List<Student> stus = GetStudents().OrderBy(x => x.Id).Take(3).ToList();
            if (ViewData["currentPage"] == null)
            {
                ViewData["currentPage"] = 1;
            }
            int currentPage = 1;
            int totalPage = (totalCount - 1) / pageSize + 1;
            ViewData["stus"] = stus;
            int pages = 5;
            int end = currentPage + pages - 1 > totalPage ? totalPage : currentPage + pages - 1;
            for (int i = currentPage; i <=end ; i++)
            {
                sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>{5}</a>", i.ToString(),3,totalCount,totalPage,pages, i.ToString()));

            }
            sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>上一页</a>",currentPage-1>=1?currentPage-1:1,pageSize,totalCount,totalPage,pages));
            sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>下一页</a>", currentPage +1>totalPage?totalPage:currentPage+1 ,pageSize, totalCount,totalPage,pages));
            ViewData["pager"] = sb.ToString();
            return View();
          
        }
 
        public ActionResult ProcessPaging(int pageIndex,int pageSize,int totalCount,int totalPage,int pages)
        {
            var stus = GetStudents();
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            ViewData["stus"] = stus.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();
            int end = pageIndex + pages - 1 > totalPage ? totalPage : pageIndex + pages - 1;
            for (int i = 0; i < 2*pages+1; i++)
            {
                if (pageIndex - pages + i >= 1 && pageIndex - pages + i <= totalPage)
                {
                    int cur = pageIndex - pages + i;
                    if (cur == pageIndex)
                    {
                        sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'><font color='red'>{5}</font></a>", cur.ToString(), pageSize, totalCount, totalPage, pages, cur.ToString()));
                    }
                    else
                    {
                        sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>{5}</a>", cur.ToString(), pageSize, totalCount, totalPage, pages, cur.ToString()));
                    }
                }
            }
     
            sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>上一页</a>", pageIndex - 1 >= 1 ? pageIndex - 1 : 1, pageSize, totalCount, totalPage, pages));
            sb.Append(string.Format("<a href='/Home/ProcessPaging?pageIndex={0}&pageSize={1}&totalCount={2}&totalPage={3}&pages={4}'>下一页</a>", pageIndex + 1 > totalPage ? totalPage : pageIndex + 1, pageSize, totalCount, totalPage, pages));
            ViewData["pager"] = sb.ToString();
            return View("Index");
        }

    
     
    }
}

 

posted on 2016-02-24 06:56  听哥哥的话  阅读(247)  评论(0)    收藏  举报

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