对Car汽车表分页
实现简单分页，放在这里方便查看回顾，自定义每页几条有点问题，有待完善······
1.新建mvc项目
2.添加linq to sql 数据库连接
3.添加CarBF类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace Mvc简单分页.Models
{
public class CarBF
{
private MyDBDataContext _Context = new MyDBDataContext();
//获取总页数
public int GetPageCount(int pageSize)
{
int rowsCount = _Context.Car.Count();
int pageCount = (int)Math.Ceiling(1.0 * rowsCount / pageSize);//取天花板数
return pageCount;
}
//获取指定页数据
public List<Car> Select(int PageSize, int PageNo)
{
var query = _Context.Car.Skip(PageSize * (PageNo - 1)).Take(PageSize);
return query.ToList();
}
}
}
添加HomeController控制器
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Mvc简单分页.Models;
namespace Mvc简单分页.Controllers
{
public class HomeController : Controller
{
private int PAGESIZE = 5;//每页多少条数据
//
// GET: /Home/
public ActionResult Index(int? id)
{
ViewBag.pagesize = PAGESIZE;
if (id == null)
{
id = 1;
}
List<Car> list = new CarBF().Select(PAGESIZE, id.Value);//找出当前数据
int pageCount = new CarBF().GetPageCount(PAGESIZE);//找出总页数
int nextPageNo = id.Value >= pageCount ? pageCount : id.Value + 1;//计算下一页页号
int prevPageNo = id.Value == 1 ? 1 : id.Value - 1;//计算上一页页号
//使用viewbag带到视图去
ViewBag.NextPageNo = nextPageNo;
ViewBag.PrevPageNo = prevPageNo;
ViewBag.PageCount = pageCount;//总页数
ViewBag.PageNo = id;//当前页号
//下拉列表显示页数需要的selectlist数据
List<int> listPage = new List<int>();
for (int i = 1; i <= pageCount; i++)
{
listPage.Add(i);
}
SelectList li = new SelectList(listPage, id);
ViewBag.PageList = li;
return View(list);
}
}
}
添加视图--用默认的Index视图
@{
Layout = null;
}
@using Mvc简单分页.Models;
@model List<Car>
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>分页</title>
</head>
<body>
<div>
<h1>分页</h1>
@using (@Html.BeginForm("Index", "Home", FormMethod.Post, new { id = "form2" }))//******************
{
//string str = ViewBag.PAGESIZE;
@:每页 @Html.TextBox("id", (int)ViewBag.PAGESIZE, new { onchange = "form.submit()" }) 条<input id="Button1" type="button" value="确定" />
}
<table border="0" width="100%" cellpadding="5" cellspacing="1" bgcolor="navy" style="text-align: center">
<tr style="color: white; background-color: navy; text-align: center; font-weight: bold">
<th>代号</th>
<th>车型</th>
<th>系列</th>
<th>厂商</th>
<th>价格</th>
</tr>
@{
foreach (Car data in Model)
{
<tr bgcolor="white">
<td>@data.Code</td>
<td>@data.Name</td>
<td>@data.Brand1.Brand_Name</td>
<td>@data.Brand1.Productor.Prod_Name</td>
<td>@data.Price</td>
</tr>
}
}
</table>
@*@{
int nowPageNo = (int)ViewBag.PageNo;
int nextPageNo = nowPageNo + 1;
if (nowPageNo == new CarBF().GetPageCount(5))
{
nextPageNo = nowPageNo;
}
int prevPageNo = nowPageNo - 1;
if (nowPageNo == 1)
{
prevPageNo = 1;
}
}*@
@Html.ActionLink("首页", "Index", new { id = 1 })
@Html.ActionLink("上一页", "Index", "Home", new { id = (int?)ViewBag.PrevPegeNo }, null)
@Html.ActionLink("下一页", "Index", "Home", new { id = (int)ViewBag.NextPageNo }, null)
@Html.ActionLink("尾页", "Index", new { id = (int)ViewBag.PageCount })
<div style="display:inline-block">
@using (Html.BeginForm("Index", "Home"))
{
@:转到：@Html.TextBox("id", null, new { size = 2 })<input type="submit" value="Go" />
}
</div>
一共<font color="red"> @ViewBag.PageCount </font>页，当前是第<font style="color:red"> @ViewBag.PageNo </font>页
<div style="display:inline-block">
@using (Html.BeginForm("Index", "Home"))
{
@:转到：@Html.DropDownList("id", (SelectList)ViewBag.Pagelist)<input type="submit" value="Go" />
}
</div>
</div>
</body>
</html>
效果图
时间： 2024-10-13 17:00:36