public ActionResult CreateStudent(int? sectionId) {
     RegisterViewModelOfStudentToSection register = new RegisterViewModelOfStudentToSection();
     register.SectionId = (int)sectionId;
     return View();
 }
        public async Task<ActionResult> RegisterStudentForSection(RegisterViewModelOfStudentToSection model)
        {
            if (ModelState.IsValid)
            {
                var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
                var result = await UserManager.CreateAsync(user, model.Password);
                if (result.Succeeded)
                {
                    Student stud = new Student();
                    stud.Age = model.age;
                    stud.Gender = model.Gender;
                    stud.schoolName = model.schoolName;
                    stud.Id = user.Id;
                    stud.SectionId = model.SectionId;
                    db.Students.Add(stud);
                    db.SaveChanges();
                    result = await UserManager.AddToRolesAsync(user.Id, "Student");
                    if (!result.Succeeded)
                    {

                    }
                    else {
                        var code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
                        var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
                        await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking this link: <a href=\"" + callbackUrl + "\">link</a>");
                        ViewBag.Link = callbackUrl;
                        return RedirectToAction("StudentManagement", "Teachers",new { id=model.SectionId});

                    }

                }
                AddErrors(result);
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }