MVC ---- 怎删改查

using Modelsop;using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using Newtonsoft.Json;using System.Data.Entity.Infrastructure;using System.Data.Entity;namespace WebApplication1.Controllers{ ???public class HomeController : Controller ???{ ???????SuperCodeEntities context = new SuperCodeEntities(); ???????public ActionResult Index() ???????{ ?????????????????????return View(); ???????} ???????public ActionResult About() ???????{ ???????????ViewBag.Message = "Your application description page."; ???????????return View(); ???????} ???????public ActionResult Contact() ???????{ ???????????ViewBag.Message = "Your contact page."; ???????????return View(); ???????} ???????public ActionResult Add(Test user) ???????{ ???????????string reslt = null; ???????????int reslut = 0; ???????????try ???????????{ ??????????????context.Test.Add(user); ??????????????reslut= context.SaveChanges(); ??????????????if (reslut > 0) ??????????????{ ??????????????????reslt = "添加成功！"; ??????????????} ??????????????else ??????????????{ ??????????????????reslt = "添加失败！"; ??????????????} ????????????} ???????????catch (Exception) ???????????{ ???????????????throw; ???????????} ???????????return Content(JsonConvert.SerializeObject(reslt)); ???????} ???????public ActionResult TestList() { ???????????List<Test> tt = context.Set<Test>().ToList(); ???????????return Content(JsonConvert.SerializeObject(tt)); ???????} ???????public ActionResult Del(int Id) ???????{ ???????????string reslt = null; ???????????int reslut = 0; ???????????Test tt = context.Test.Where(m => m.ID == Id).FirstOrDefault(); ???????????context.Test.Attach(tt); ???????????context.Test.Remove(tt); ???????????reslut = context.SaveChanges(); ???????????if (reslut > 0) ???????????{ ???????????????reslt = "添加成功！"; ???????????} ???????????else ???????????{ ???????????????reslt = "添加失败！"; ???????????} ???????????return Content(JsonConvert.SerializeObject(reslt)); ???????} ???????public ActionResult Update(Test tt) { ???????????string reslt = null; ???????????int reslut = 0; ???????????var ts = context.Test.Find(tt.ID); ???????????ts.Name = tt.Name; ???????????ts.Msisdn = tt.Msisdn; ???????????context.Entry<Test>(ts).State = EntityState.Modified; ???????????reslut = context.SaveChanges(); ???????????if (reslut > 0) ???????????{ ???????????????reslt = "添加成功！"; ???????????} ???????????else ???????????{ ???????????????reslt = "添加失败！"; ???????????} ???????????return Content(JsonConvert.SerializeObject(reslt)); ???????} ???????public ActionResult eidt(int id) ???????{ ???????????Test tt = context.Test.Where(m => m.ID == id).FirstOrDefault(); ???????????return View(tt); ???????} ???}}