public ActionResult Edit(TraineeAttendance traineeattendance)
 {
     if (ModelState.IsValid)
     {
         db.Entry(traineeattendance).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(traineeattendance);
 }
        public ActionResult Create(TraineeAttendance traineeattendance)
        {
            if (ModelState.IsValid)
            {
                traineeattendance.AttendanceGuid = Guid.NewGuid();
                traineeattendance.UserID = User.Identity.Name.Split(',')[0];
                traineeattendance.CreateTime = DateTime.Now;
                db.TraineeAttendances.Add(traineeattendance);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(traineeattendance);
        }