protected override void OnNavigatedTo(NavigationEventArgs e)
{
viewModel = new TakeExamViewModel();
UserExam us = new UserExam();
us = (UserExam)e.Parameter;
_student = us.student;
_exam = us.exam;
CurrentTestQuestion(questionIndex);
}
public IActionResult TakeExam(TakeExamViewModel giveExamViewModel)
{
var questions = examQuestionRepository.GetExamQuestions(giveExamViewModel.ExamId).Select(c => c.Question).Select(c => c.QuestionChoices.Select(v => v.Choice.IsCorrect)).ToList();
int score = 0;
var user = userManager.GetUserId(User);
try
{
foreach (var item in giveExamViewModel.Answers)
{
Answer answer = new Answer
{
AppUserId = int.Parse(user),
ChoiceId = item.ChoiceId,
IsSelected = item.IsSelected
};
answerRepository.Add(answer);
var choice = choiceRepository.Get(item.ChoiceId);
if (item.IsSelected == true && choice.IsCorrect == true)
{
score++;
}
}
}
catch
{
return(NotFound());
}
double resultScore = Math.Round((((double)score / (double)questions.Count) * 100), 2);
Result result = new Result
{
AppUserId = int.Parse(user),
ExamId = giveExamViewModel.ExamId,
Score = resultScore,
Exam = examRepository.Get(giveExamViewModel.ExamId),
dateTime = DateTime.Now
};
resultRepository.Add(result);
return(RedirectToAction("FinishExam", new { ResultId = result.Id }));
}
public IActionResult TakeExam(int examID)
{
TakeExamViewModel takeExam = new TakeExamViewModel();
var Exam = examRepository.Get(examID);
List <ExamQuestion> examQuestions = examQuestionRepository.GetExamQuestions(examID).ToList();
takeExam.Questions = examQuestions.Select(c => c.Question).ToList();
if (takeExam.Questions.Count == 0)
{
return(RedirectToAction("NotExistExam"));
}
takeExam.ExamId = examID;
takeExam.ExamDuration = Exam.Duration;
int startDateCompare = DateTime.Compare(Exam.StartDate, DateTime.Now);
int endDateCompare = DateTime.Compare(Exam.EndDate, DateTime.Now);
//if (startDateCompare < 0 && endDateCompare > 0)
//{
// return RedirectToAction("NotExistExam");
// }
return(View(takeExam));
}
public RedirectToRouteResult TakeExam(TakeExamViewModel takeExamViewModel)
{
ViewBag.Exam = takeExamViewModel.SelectedSubject;
return(RedirectToAction("QuestionPaper", "Exam", new { subject = takeExamViewModel.SelectedSubject, difficulty = takeExamViewModel.Difficulty }));
}
public TakeExam()
{
this.InitializeComponent();
this.TakeExamViewModel = new TakeExamViewModel();
}
