public async Task <IActionResult> Edit(int id, [Bind("Hy,StudentId,TeacherId,SubjectId,ExamId,Ct1,Sub,Obj,Practical,Attendence")] HalfYearResult halfYearResult)
        {
            if (id != halfYearResult.Hy)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(halfYearResult);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!HalfYearResultExists(halfYearResult.Hy))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            ViewData["ExamId"]    = new SelectList(_context.ExamInfo, "ExamId", "ExamName", halfYearResult.ExamId);
            ViewData["StudentId"] = new SelectList(_context.StudentInfo, "StudentId", "StudentName", halfYearResult.StudentId);
            ViewData["SubjectId"] = new SelectList(_context.SubjectInfo, "SubjectId", "SubjectName", halfYearResult.SubjectId);
            ViewData["TeacherId"] = new SelectList(_context.TeacherInfo, "TeacherId", "Email", halfYearResult.TeacherId);
            return(View(halfYearResult));
        }
        public async Task <IActionResult> Create([Bind("Hy,StudentId,TeacherId,SubjectId,ExamId,Ct1,Sub,Obj,Practical,Attendence")] HalfYearResult halfYearResult)
        {
            if (ModelState.IsValid)
            {
                _context.Add(halfYearResult);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            ViewData["ExamId"]    = new SelectList(_context.ExamInfo, "ExamId", "ExamName", halfYearResult.ExamId);
            ViewData["StudentId"] = new SelectList(_context.StudentInfo, "StudentId", "StudentName", halfYearResult.StudentId);
            ViewData["SubjectId"] = new SelectList(_context.SubjectInfo, "SubjectId", "SubjectName", halfYearResult.SubjectId);
            ViewData["TeacherId"] = new SelectList(_context.TeacherInfo, "TeacherId", "Email", halfYearResult.TeacherId);
            return(View(halfYearResult));
        }