强类型对一张进行增删查改

Posted Sealee

tags:

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控制器

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

namespace MVCDemo.Controllers
{
    public class StrongController : Controller
    {
        NorthwindDBDataContext dc = new NorthwindDBDataContext();
        //
        // GET: /Strong/

        public ActionResult Index()
        {         
               ViewData.Model = dc.Users.AsEnumerable();  //显示数据页
            return View();
        }
        [HttpGet]   //这里有重载,可能会不知道用那个方法    get方法
        public ActionResult Create()
        {
            return View();   //跳到添加页面做添加
        }
        [HttpPost]
        public ActionResult Create(Users user)
        {
            dc.Users.InsertOnSubmit(user);
            dc.SubmitChanges();
            return RedirectToAction("Index");  //添加成功,跳到显示页
        }
        public ActionResult Delete(int? id)
        {
            dc.Users.DeleteOnSubmit(dc.Users.Where(x => x.ID == id).First());  //找到你需要删除的用户
            dc.SubmitChanges();
            return RedirectToAction("Index");
        }
          [HttpGet]
        public ActionResult Update(int? id)
        {
            ViewData.Model = dc.Users.Where(x => x.ID == id).First();   //找到需要更新的用户信息
            return View();   //在更新页上显示数据
        }
           [HttpPost]
        public ActionResult Update(Users user)
        {
          var result= dc.Users.Where(x => x.ID == user.ID);  //找到需要更新的用户
          foreach (var item in result)  //进行更新
          {
              item.UserName = user.UserName;  
              item.UserPwd=user.UserPwd;
              item.Sex = user.Sex;
          }
          dc.SubmitChanges();
          return RedirectToAction("Index");
        }
    }
}

显示数据页

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<IEnumerable<MVCDemo.Models.Users>>" %>
<%-- 确定为用户集的类型  --%>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
    <style>
        table {
            background-color: red;
        }

            table tr {
                background-color: white;
            }
    </style>
</head>
<body>
    <div>
        <table>
            <tr>
                <th>ID</th>
                <th>Name</th>
                <th>Pwd</th>
                <th>Sex</th>
                <th>更新</th>
                <th>删除</th>
            </tr>

            <% foreach (var item in Model)
               {
            %>
            <tr>
                <td><%= item.ID %></td>
                <td><%= item.UserName %></td>
                <td><%= item.UserPwd %></td>
                <td><%= item.Sex %></td>
                <td><%= Html.ActionLink("更新", "Update", new { id = item.ID })%></td>
                <td><%= Html.ActionLink("删除", "Delete", new { id = item.ID })%></td>
            </tr>
            <%
               } %>
        </table>
    </div>
    <%= Html.ActionLink("添加","Create") %>
</body>
</html>

添加

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<MVCDemo.Models.Users>" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Create</title>
</head>
<body>
    <script src="<%: Url.Content("~/Scripts/jquery-1.8.2.min.js") %>"></script>
    <script src="<%: Url.Content("~/Scripts/jquery.validate.min.js") %>"></script>
    <script src="<%: Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js") %>"></script>
    
    <% using (Html.BeginForm("Create","Strong","FormMethod=post")) { %>  <%--确定表单的传值方式和提交后要去的方法--%>
        <%: Html.AntiForgeryToken() %>
        <%: Html.ValidationSummary(true) %>
    
        <fieldset>
            <legend>Users</legend>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.UserName) %>
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.UserName) %> //EditorFor可以根据数据库的类型来限制输入的类型
                <%: Html.ValidationMessageFor(model => model.UserName) %>
            </div>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.UserPwd) %>
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.UserPwd) %>
                <%: Html.ValidationMessageFor(model => model.UserPwd) %>
            </div>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.Sex) %> 
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.Sex) %><%: Html.ValidationMessageFor(model => model.Sex) %>
            </div>
    
            <p>
                <input type="submit" value="Create" />
            </p>
        </fieldset>
    <% } %>
    
    <div>
        <%: Html.ActionLink("Back to List", "Index") %>
    </div>
</body>
</html>

更新

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<MVCDemo.Models.Users>" %>

<!DOCTYPE html>

<html>
<head runat="server">
    <meta name="viewport" content="width=device-width" />
    <title>Update</title>
</head>
<body>
    <script src="<%: Url.Content("~/Scripts/jquery-1.8.2.min.js") %>"></script>
    <script src="<%: Url.Content("~/Scripts/jquery.validate.min.js") %>"></script>
    <script src="<%: Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js") %>"></script>
    
    <% using (Html.BeginForm("Update", "Strong", "FormMethod=post"))
       { %>
    
        <fieldset>
            <legend>Users</legend>
    
            <%: Html.HiddenFor(model => model.ID) %>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.UserName) %>
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.UserName) %>
                <%: Html.ValidationMessageFor(model => model.UserName) %>
            </div>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.UserPwd) %>
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.UserPwd) %>
                <%: Html.ValidationMessageFor(model => model.UserPwd) %>
            </div>
    
            <div class="editor-label">
                <%: Html.LabelFor(model => model.Sex) %>
            </div>
            <div class="editor-field">
                <%: Html.EditorFor(model => model.Sex) %>
                <%: Html.ValidationMessageFor(model => model.Sex) %>
            </div>
    
            <p>
                <input type="submit" value="Save" />
            </p>
        </fieldset>
    <% } %>
    
    <div>
        <%: Html.ActionLink("Back to List", "Index") %>
    </div>
</body>
</html>

 

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