方便自己复习使用，不多说，上代码。
方便自己复习使用，不多说，上代码。
OneDrive链接：毕竟垃圾就不放了（OneDrive - Personal/VS-Code-Demo/）
Home控制器
using EFDemo5.Models;
using System.Linq;
using System.Web.Mvc;
namespace EFDemo5.Controllers
{
public class HomeController : Controller
{
NewsEntities1 ns = new NewsEntities1();
public ActionResult Index()
{
//1、返回所有
var nes = ns.News_Type.ToList();
ViewBag.msg = nes;
return View();
}
/// <summary>
/// 增加页面
/// </summary>
/// <returns></returns>
public ActionResult AddNews()
{
var newstype = ns.News_Type.ToList();
return View(newstype);
}
/// <summary>
/// 增加新闻功能
/// </summary>
/// <returns></returns>
///
public ActionResult Add(News_Type News_Type)
{
//1、添加对象
ns.News_Type.Add(News_Type);
//2、保存返回大于1成功！
int rs = ns.SaveChanges();
return RedirectToAction("Index", "Home");
}
/// <summary>
/// 修改页面
/// </summary>
/// <returns></returns>
public ActionResult Edit(int id)
{
//1、查询原有id传递到修改页面
var usnews = ns.News_Type.FirstOrDefault(x => x.Type_id == id);
var usnewsDescrip = ns.News_Type.ToList();
return View(usnews);
}
/// <summary>
/// 修改功能
/// </summary>
/// <returns></returns>
public ActionResult EditNews(News_Type news_Type)
{
//1、原有对象
var Enews = ns.News_Type.FirstOrDefault(x => x.Type_id == news_Type.Type_id);
//2、重新赋值
Enews.Type_Name = news_Type.Type_Name;
Enews.Type_Description = news_Type.Type_Description;
//3、提交保存
ns.SaveChanges();
return RedirectToAction("Index", "Home");
}
/// <summary>
/// 删除功能
/// </summary>
/// <returns></returns>
public ActionResult DeleteNews(int id)
{
//1、查询原有id对象
var news = ns.News_Type.FirstOrDefault(x => x.Type_id == id);
//2、移除对象
ns.News_Type.Remove(news);
//3、保存
ns.SaveChanges();
//4、返回Index
return RedirectToAction("Index","Home");
}
}
}Index视图
@{
Layout = null;
}
@using EFDemo5.Models;
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width,initial-scake=1.0" />
<title>Index</title>
<link href="~/Content/css/bootstrap.min.css" rel="stylesheet" />
<script src="~/Content/js/bootstrap.min.js"></script>
<script src="~/Content/js/._jquery.min.js"></script>
<style>
.table {
max-width: 60%;
text-align: center;
margin: 0 auto;
}
th {
text-align: center;
}
</style>
<script type="text/javascript">
</script>
</head>
<body>
<div class="box">
<button type="button" class="btn btn-default" id="Increase"><a href="/Home/AddNews">增加</a></button>
<table class="table table-bordered">
<tr><th>编号</th><th>名称</th><th>类别</th><th>操作</th></tr>
@foreach (var item in (List<News_Type>)ViewBag.msg)
{
<tr>
<td>@item.Type_id</td>
<td>@item.Type_Name</td>
<td>@item.Type_Description</td>
<td><button type="button" class="btn btn-default"><a href="/Home/Edit?ID=@item.Type_id">修改</a></button><button type="button" class="btn btn-default"><a href="/Home/DeleteNews?ID=@item.Type_id">删除</a></button></td>
</tr>
}
</table>
</div>
</body>
</html>
AddNews视图
@{
Layout = null;
}
@using EFDemo5.Models;
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>添加新闻</title>
<link href="~/Content/css/bootstrap.min.css" rel="stylesheet" />
<script src="~/Content/js/bootstrap.min.js"></script>
<script src="~/Content/js/._jquery.min.js"></script>
<style>
#box {
/*display:flex;*/
text-align: center;
margin: 0 auto;
margin-top: 90px;
max-width: 60%;
}
</style>
<script>
//var btn = document.getElementById('intp').value();
//btn.onclick = function () {
// if (btn > 0) {
// alert("成功！");
// }
// else {
// alert("失败！");
// }
//}
</script>
</head>
<body>
<div id="box">
<form class="form-horizontal" role="form" action="Add">
<div class="form-group">
<label class="col-sm-2 control-label">名称</label>
<div class="col-sm-10">
<input class="form-control" id="focusedInput" type="text" name="Type_Name" value="" placeholder="请输入新闻名称" >
</div>
</div>
<div class="form-group">
<label for="" class="col-sm-2 control-label">新闻类别</label>
<div class="col-sm-10">
<select id="box2" class="form-control" name="Type_Description">
@foreach (var item in (List<News_Type>)Model)
{
<option value="@item.Type_Description">@item.Type_Description</option>
}
</select>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" id="bt" class="btn btn-default" value="">添加</button>
</div>
</div>
</form>
</div>
</body>
</html>
Edit视图
@{
Layout = null;
}
@using EFDemo5.Models;
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>修改新闻</title>
<link href="~/Content/css/bootstrap.min.css" rel="stylesheet" />
<script src="~/Content/js/bootstrap.min.js"></script>
<script src="~/Content/js/._jquery.min.js"></script>
<style>
#box {
/*display:flex;*/
text-align: center;
margin: 0 auto;
margin-top: 90px;
max-width: 60%;
}
</style>
<script>
//var btn = document.getElementById('intp').value();
//btn.onclick = function () {
// if (btn > 0) {
// alert("成功！");
// }
// else {
// alert("失败！");
// }
//}
</script>
</head>
<body>
<div id="box">
<form class="form-horizontal" role="form" action="EditNews">
<div class="form-group">
<label class="col-sm-2 control-label">名称</label>
<div class="col-sm-10">
<input type="hidden" name="Type_id" id="" value="@Model.Type_id"/>
<input class="form-control" id="focusedInput" type="text" name="Type_Name" value="@Model.Type_Name" placeholder="请修改新闻名称">
</div>
</div>
<div class="form-group">
<label for="" class="col-sm-2 control-label">新闻类别</label>
<div class="col-sm-10">
<select id="box2" class="form-control" name="Type_Description">
<option value="@Model.Type_Description">@Model.Type_Description</option>
</select>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" id="" class="btn btn-default" value="">修改</button>
</div>
</div>
</form>
</div>
</body>
</html>
效果图
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