private void DisplayAnswer()
{
lv_testResult.Items.Clear();
QuestionService questionService = new QuestionService();
List <QuestionModel> questionList = questionService.GetAll().Where(x => x.TestID == testID).ToList();
AnswerService answerService = new AnswerService();
List <AnswerModel> answerList = answerService.GetAll().ToList();
UserService userService = new UserService();
lbl_userName.Text = userService.Get(userID).Name;
StatisticService statisticService = new StatisticService();
int correct = statisticService.GetAll()
.Where(x => x.TestID == testID && x.UserID == userID)
.OrderByDescending(x => x.StatisticID)
.First().CorrectAnswer;
lbl_result.Text += Math.Round((double)(100 * correct) / questionList.Count).ToString() + "%";
foreach (var question in questionList)
{
string correctAnswer = answerList.Where(x => x.QuestionID == question.QuestionID && x.isCorrect == true).Single().AnswerText;
var row = new string[] { question.QuestionName, correctAnswer };
ListViewItem listView = new ListViewItem(row);
listView.Tag = question;
lv_testResult.Items.Add(listView);
}
}
