MVC [Control与View交互]

<1>

Home控制器

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcApplication4.Models;

namespace MvcApplication4.Controllers
{
    public class HomeController : Controller
    {
        private salesEntities db = new salesEntities();//salesEntities是一个ADO.NET实体数据模型类

        //
        // GET: /Home/

        public ActionResult Index()
        {
            return View(db.T_UserInfo.ToList());
        }

        //
        // GET: /Home/Details/5

        public ActionResult Details(int id = 0)
        {
            T_UserInfo t_userinfo = db.T_UserInfo.Single(t => t.id == id);
            if (t_userinfo == null)
            {
                return HttpNotFound();
            }
            return View(t_userinfo);
        }

        //
        // GET: /Home/Create

        public ActionResult Create()
        {
            return View();
        }

        //
        // POST: /Home/Create

        [HttpPost]
        public ActionResult Create(T_UserInfo t_userinfo)
        {
            if (ModelState.IsValid)
            {
                db.T_UserInfo.AddObject(t_userinfo);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(t_userinfo);
        }

        //
        // GET: /Home/Edit/5

        public ActionResult Edit(int id = 0)
        {
            T_UserInfo t_userinfo = db.T_UserInfo.Single(t => t.id == id);
            if (t_userinfo == null)
            {
                return HttpNotFound();
            }
            return View(t_userinfo);
        }

        //
        // POST: /Home/Edit/5

        [HttpPost]
        public ActionResult Edit(T_UserInfo t_userinfo)
        {
            if (ModelState.IsValid)
            {
                db.T_UserInfo.Attach(t_userinfo);
                db.ObjectStateManager.ChangeObjectState(t_userinfo, EntityState.Modified);
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(t_userinfo);
        }

        //
        // GET: /Home/Delete/5

        public ActionResult Delete(int id = 0)
        {
            T_UserInfo t_userinfo = db.T_UserInfo.Single(t => t.id == id);
            if (t_userinfo == null)
            {
                return HttpNotFound();
            }
            return View(t_userinfo);
        }

        //
        // POST: /Home/Delete/5

        [HttpPost, ActionName("Delete")]
        public ActionResult DeleteConfirmed(int id)
        {
            T_UserInfo t_userinfo = db.T_UserInfo.Single(t => t.id == id);
            db.T_UserInfo.DeleteObject(t_userinfo);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            db.Dispose();
            base.Dispose(disposing);
        }
    }
}

Index 视图  （这是首页）

@model IEnumerable<MvcApplication4.Models.T_UserInfo>--------------请注意这么一条语句，很重要

@{
    ViewBag.Title = "Index";
}

<h2>首页</h2>

<p>
    @Html.ActionLink("Create New", "Create")
</p>
<table>
    <tr>
        <th>
           @* @Html.DisplayNameFor(model => model.Name)*@
            @Html.Label("姓名")
        </th>
        <th>
           @* @Html.DisplayNameFor(model => model.Age)*@
            @Html.Label("年龄")
        </th>
        <th></th>
    </tr>

@foreach (var item in Model) {
    <tr>
        <td>
            @Html.DisplayFor(modelItem => item.Name)
        </td>
        <td>
            @Html.DisplayFor(modelItem => item.Age)
        </td>
        <td>
            @Html.ActionLink("编辑", "Edit", new { id=item.id }) |
            @Html.ActionLink("明细", "Details", new { id=item.id }) |
            @Html.ActionLink("删除", "Delete", new { id=item.id })
            
        </td>
    </tr>
}

</table>

Create视图

@model MvcApplication4.Models.T_UserInfo

@{
    ViewBag.Title = "Create";
}

<h2>创建</h2>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>T_UserInfo</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.Name)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Name)
            @Html.ValidationMessageFor(model => model.Name)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Age)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Age)
            @Html.ValidationMessageFor(model => model.Age)
        </div>

        <p>
            <input type="submit" value="确定加入" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("跳转到首页", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

delete 视图

@model MvcApplication4.Models.T_UserInfo

@{
    ViewBag.Title = "Delete";
}

<h2>删除</h2>

<h3>你确定要删除它吗？?</h3>
<fieldset>
    <legend>T_UserInfo</legend>

    <table>
        <tr><th>@Html.Label("姓名:")</th><td>@Html.DisplayFor(model => model.Name)</td></tr>
        <tr><th>@Html.Label("年龄:")</th><td> @Html.DisplayFor(model => model.Age)</td></tr>
    </table>
</fieldset>
@using (Html.BeginForm()) {
    <p>
        <input type="submit" value="确定删除" /> |
        @Html.ActionLink("跳转到首页", "Index")
    </p>
}

Details视图

@model MvcApplication4.Models.T_UserInfo

@{
    ViewBag.Title = "Details";
}

<h2>明细</h2>

<fieldset>
    <legend>T_UserInfo</legend>
    <table>
        <tr><th>@Html.Label("姓名:")</th><td>@Html.DisplayFor(model => model.Name)</td></tr>
        <tr><th>@Html.Label("年龄:")</th><td> @Html.DisplayFor(model => model.Age)</td></tr>
    </table>

</fieldset>
<p>
    @Html.ActionLink("编辑", "Edit", new { id=Model.id }) |
    @Html.ActionLink("跳转到首页", "Index")
</p>

Edit 视图

@model MvcApplication4.Models.T_UserInfo

@{
    ViewBag.Title = "Edit";
}

<h2>编辑</h2>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>T_UserInfo</legend>

        @Html.HiddenFor(model => model.id)

        <div class="editor-label">
           @* @Html.LabelFor(model => model.Name)*@
            @Html.Label("姓名")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Name)
            @Html.ValidationMessageFor(model => model.Name)
        </div>

        <div class="editor-label">
            @*@Html.LabelFor(model => model.Age)*@
            @Html.Label("年龄")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Age)
            @Html.ValidationMessageFor(model => model.Age)
        </div>

        <p>
            <input type="submit" value="保存" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("跳转到首页", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}