Bai tap

Home Controllers
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using FinalExaml.Models;
using System.Net;
using System.Data.Entity;

namespace FinalExaml.Controllers
{
    public class HomeController : Controller
    {
        BookmanagerEntities2 db = new BookmanagerEntities2();
        // GET: Home
        public ActionResult Index()
        {
            return View(db.books.ToList().OrderBy(n=>n.price));
        }

        public ActionResult Details(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            book bk = db.books.Find(id);
            if (bk == null)
            {
                return HttpNotFound();
            }
            return View(bk);
        }

        public ActionResult create()
        {
            return View();
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult create([Bind(Include = "bookID,bookName,publish,avatar,content,price")] book bk)
        {
            if (ModelState.IsValid)
            {
                db.books.Add(bk);
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(bk);
        }
        public ActionResult Edit(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            book bk = db.books.Find(id);
            if (bk == null)
            {
                return HttpNotFound();
            }
            return View(bk);
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit([Bind(Include = "bookID,bookName,publish,avatar,content,price")]book bk)
        {
            if (ModelState.IsValid)
            {
                db.Entry(bk).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(bk);
        }
        public ActionResult Delete(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }

            book bk = db.books.Find(id);
            if (bk == null)
            {
                return HttpNotFound();
            }
            return View(bk);
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Delete(int id)
        {
            book bk = db.books.Find(id);
            db.books.Remove(bk);
            db.SaveChanges();
            return RedirectToAction("Index");
        }
    }
}


Search Controllers

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

namespace FinalExaml.Controllers
{
    public class SearchController : Controller
    {
        BookmanagerEntities2 db = new BookmanagerEntities2();
        // GET: Search
        [HttpGet]
        public ActionResult Index(string keyword)
        {
            var list = db.books.Where(n => n.bookName.Contains(keyword));
            return View(list.ToList());
        }
        [HttpPost]
        public ActionResult Index(FormCollection f)
        {
            var keyword = f["txtsearch"];
            var list = db.books.Where(n => n.bookName.Contains(keyword));
            return View(list.ToList());
        }
    }
}

User Controllers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using FinalExaml.Models;
namespace FinalExaml.Controllers
{
    public class UserController : Controller
    {
        BookmanagerEntities2 db = new BookmanagerEntities2();
        // GET: User
        public ActionResult Index()
        {
            return View();
        }
        [HttpGet]
        public ActionResult Register()
        {
            return View();
        }
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Register([Bind(Include = "username,password,email")]User us)
        {
            if (ModelState.IsValid)
            {
                db.Users.Add(us);
                db.SaveChanges();
                return RedirectToAction("Index", "Home");
            }
            return View();
        }

        [HttpGet]
        public ActionResult Login()
        {
            return View();
        }
        [HttpPost]
        public ActionResult Login(string user,string pass)
        {
            user = Request.Form["txtUser"];
            pass = Request.Form["txtPass"];
            User us = db.Users.SingleOrDefault(n => n.username == user && n.password == pass);
            if (us != null)
            {
                Session["dn"] = us;
                return RedirectToAction("Index", "Home");
            }
            else
            {
                ViewBag.thongbao = "Đăng nhập thất bại";
            }
            return View();
        }
        public ActionResult Logout()
        {
            if(Session["dn"] != null)
            {
                Session["dn"] = null;
            }
            return RedirectToAction("Index", "Home");
        }
    }
}