public ActionResult MarkExam()
{
if (Session["UserName"] == null)
{
return(RedirectToAction("LoginUser", "Login"));
}
Result rs = new Result();
Exam exam = Session["Exam"] as Exam;
if (!exam.Status)
{
return(RedirectToAction("Index", "ReSubmit_Error"));
}
exam.Status = false;
rs.Num_of_quizs = exam.Quizs.Count;
exam.Mark_exam(db);
rs.Num_of_correct_answers = exam.Count_correct_answers(db);
rs.Score = Get_total_score(rs);
Save_total_score_to_db(exam.Id_de_thi, rs.Score);
return(RedirectToAction("Index", rs));
}