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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:

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