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  • 强类型对一张进行增、删、查、改

    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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  • 原文地址:https://www.cnblogs.com/Sea1ee/p/5971516.html
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