private void CheckAnswer(object obj)
{
List <Question> listAnswers = new List <Question>();
string questions = string.Empty;
string answers = string.Empty;
string koeff = string.Empty;
foreach (var quest in Questions)
{
listAnswers.Add(quest);
questions += quest.QuestionId + ",";
answers += quest.Answer + ",";
var ans = _repo.GetTrueAnswer(quest);
koeff += ans + ",";
}
var mark = _repo.CheckAnswer(listAnswers);
MessageBox.Show($"Вы заработали {mark} баллов", "Оценка", MessageBoxButton.OK, MessageBoxImage.Information);
var studProgress = new StudentProgress {
StudentId = UserId, Mark = mark, TestId = _test.TestId, Questions = questions, Answers = answers, Koeff = koeff
};
_repo.AddMark(studProgress);
}