public IHttpActionResult PutAStudent(int id, Students3 aStudentAll)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != aStudentAll.Id)
            {
                return(BadRequest());
            }

            db.Entry(aStudentAll).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!AStudentExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetAStudent(int id)
        {
            Students3 aEmployee = db.Students3.Find(id);

            if (aEmployee == null)
            {
                return(NotFound());
            }

            return(Ok(aEmployee));
        }
        public IHttpActionResult PostAStudent(Students3 aStudentAll)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.Students3.Add(aStudentAll);
            db.SaveChanges();

            // return CreatedAtRoute("DefaultApi", new { id = aStudentAll.Id }, aStudentAll);
            return(RedirectToRoute("Index", "Home"));
        }
        public IHttpActionResult DeleteAStudent(int id)
        {
            Students3 aEmployee = db.Students3.Find(id);

            if (aEmployee == null)
            {
                return(NotFound());
            }

            db.Students3.Remove(aEmployee);
            db.SaveChanges();

            return(Ok(aEmployee));
        }