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mvc3.0 +linq 操作数据库中表的数据（ps:本人菜鸟刚学）

1：添加控制器类文件HomeController.cs其代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcTestData.Models;
namespace MvcTestData.Controllers
{
    public class HomeController : Controller
    {
        //
        // GET: /Home/

        public ActionResult Index()
        {
            TestDataContext txtData = new TestDataContext();
            var result=from info in txtData.StuTable
                       select info;
            ViewData["data"] = result;
            return View(result);
        }

        public ActionResult Add(FormCollection form)
        {
            string id =form["StuId"];
            string name=form["StuName"];
            string sex = form["StuSex"];
            int age = int.Parse(form["StuAge"]);
            string address = form["StuAddress"];

            StuTable stu = new StuTable();
            stu.StuId = id;
            stu.StuName = name;
            stu.StuSex = sex;
            stu.StuAge = age;
            stu.StuAddress = address;

            try
            {
                using (var db = new TestDataContext())
                {
                    db.StuTable.InsertOnSubmit(stu);
                    db.SubmitChanges();
                    ViewData["result"] = "ok";
                }
            }
            catch 
            {
                ViewData["result"] = "fail";
                throw;
            }
            return View("Add");
        }

        public ViewResult AddInfo()
        {
            return View("AddInfo");
        }

        public ViewResult Delete()
        {
            int id = Int16.Parse(Request.Form["id"]);
            try
            {
                using (var db = new TestDataContext())
                {
                    db.StuTable.DeleteOnSubmit(db.StuTable.First(info => info.ID == id));
                    db.SubmitChanges();
                    ViewData["result"] = "ok";
                }
            }
            catch
            {
                ViewData["result"] = "fail";
                throw;
            }
            return View("Delete");
        }

       

    }
}

View Code

2：为models文件夹添加linq to sql 类文件然后把数据库中的表copy 进来

3：为控制器中的Action添加各自的视图

4 视图Index.cshtml的代码

@using MvcTestData.Models
<!DOCTYPE html>
<html>
<head>
    <title>Index</title>
</head>
<body>
    <div>
    <table border="0" cellspacing="0" cellpadding="0" width="100%" style="text-align:center" >
        <tr>
            <th>序号</th><th>学号</th><th>姓名</th><th>性别</th><th>年龄</th><th>住址</th><th >操作</th>
        </tr>
@foreach (StuTable info in (ViewData["data"] as IEnumerable<StuTable>))
{
   <tr>
        <td>@info.ID</td>
        <td>@info.StuId </td>
        <td>@info.StuName </td>
        <td>@info.StuSex </td>
        <td>@info.StuAge </td>
        <td>@info.StuAddress </td>
        <td >
            <form action="/Home/Delete" method="post">
                <input type="hidden" name="id" value="@info.ID"/>
                <input type="submit" value="删除"/>
              
            </form>
             
        </td>
   </tr>
}
          </table>
        <br/>
        @Html.ActionLink("添加个人信息","AddInfo","Home")
    </div>
</body>
</html>

View Code

5 视图 Add.cshtml的代码

@model MvcTestData.Models.StuTable

@{
    ViewBag.Title = "Add";
}
@if(ViewData["result"].Equals("ok"))
{
    <p>添加成功</p>
}
else
{
    <p>添加失败</p>
}

View Code

6 视图AddInfo.cshtml代码

@model MvcTestData.Models.StuTable

@{
    ViewBag.Title = "AddInfo";
}

<h2>AddInfo</h2>
<body>
@using(Html.BeginForm("Add","Home",FormMethod.Post))
{
    <p>Student 学号：@Html.TextBoxFor(x=>x.StuId)</p>
    <p>Student 姓名：@Html.TextBoxFor(x=>x.StuName)</p>
    <p>Student 性别：@Html.TextBoxFor(x=>x.StuSex)</p>
    <p>Student 年龄：@Html.TextBoxFor(x=>x.StuAge)</p>
    <p>Student 住址：@Html.TextBoxFor(x=>x.StuAddress)</p>
    <input type="submit" value="Add" />
}

 </body>

View Code

7 视图Delete.cshtml代码

@model MvcTestData.Models.StuTable

@{
    ViewBag.Title = "Delete";
}

@if (ViewData["result"].Equals("ok"))
{
    <p>删除成功</p>
}
else
{
   <p>删除失败</p>
}

View Code

8 最终测试结果图：

查看全文

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原文地址：https://www.cnblogs.com/thbbsky/p/3145700.html