public ActionResult Delete(int id, @class c)
        {
            if (Session["id"] == null)
                return RedirectToAction("signin", "Home");
            try
            {
                // TODO: Add delete logic here

                @class mycls = (from cls in DAO.classes where cls.classId == id select cls).FirstOrDefault<@class>();
                DAO.classes.DeleteObject(mycls);
                DAO.SaveChanges();
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
        public ActionResult Create(@class c)
        {
            if (Session["id"] == null)
                return RedirectToAction("signin", "Home");
            try
            {
                // TODO: Add insert logic here

                DAO.classes.AddObject(c);
                DAO.SaveChanges();

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
 /// <summary>
 /// Create a new class object.
 /// </summary>
 /// <param name="classId">Initial value of the classId property.</param>
 public static @class Createclass(global::System.Int32 classId)
 {
     @class @class = new @class();
     @class.classId = classId;
     return @class;
 }
 /// <summary>
 /// Deprecated Method for adding a new object to the classes EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToclasses(@class @class)
 {
     base.AddObject("classes", @class);
 }
        public ActionResult Edit(int id, @class c)
        {
            if (Session["id"] == null)
                return RedirectToAction("signin", "Home");
            try
            {
                // TODO: Add update logic here

                @class myclass = (from cls in DAO.classes where cls.classId == id select cls).FirstOrDefault<@class>();
                myclass.classId = c.classId;
                myclass.className = c.className;
                myclass.classFee = c.classFee;
                DAO.SaveChanges();
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }