Register Student Home Controller

[HttpPost]
        public ActionResult stdregister(Student s,HttpPostedFileBase pic)
        {
            
            
                int result = db.Students.Where(x => x.student_email ==s.student_email).Count();
                if (result == 1)
                {
                    ViewBag.message = "This Email is already Registered. Please enter new Email.";
                    return View();
                }
                else
                {
                    if (pic == null)
                    {
                        s.student_pic= "~/content/pics/blank-profile-picture-973460_640.png";
                    }
                    else
                    {
                        string fullpath = Server.MapPath("~/content/pics/" + pic.FileName);
                        pic.SaveAs(fullpath);
                        s.student_pic = "~/content/pics/" + pic.FileName;
                    }
                    
                    db.Students.Add(s);
                    db.SaveChanges();
                    Session["studentloging"] = s;
                    return RedirectToAction("index");
                }

}