private void CreateTestButton_Click(object sender, RoutedEventArgs e)
 {
     if (questionTypeId != -1)
     {
         if (QuestionText.Text != "" && AnswerOptions.Text != "" && CorrectAnswer.Text != "" && QuestionCountScores.Text != "")
         {
             double num2;
             bool   isDoubleNum = double.TryParse(QuestionCountScores.Text, out num2);
             if (isDoubleNum == true && double.Parse(QuestionCountScores.Text) > 0)
             {
                 QueDTOQuestionstion dTOQuestionstion = new QueDTOQuestionstion()
                 {
                     QuestionText = QuestionText.Text, AnswerOption = AnswerOptions.Text, QuestionAnswer = CorrectAnswer.Text, QuestionCountScores = double.Parse(QuestionCountScores.Text), QuestionTypeId = questionTypeId
                 };
                 int    newId  = client.SaveQuestion(dTOQuestionstion);
                 string answer = client.AddQuestionIdInTest(testId, newId);
                 if (answer == "succesfull")
                 {
                     main.Content = new AdminTestQuestions(client, mw, main, testId);
                 }
                 else
                 {
                     MessageBox.Show("Some is bad!!!");
                 }
             }
             else
             {
                 MessageBox.Show("CountScores must be a numbe!!!");
             }
         }
         else
         {
             MessageBox.Show("Please fill in all fields!!!");
         }
     }
     else
     {
         MessageBox.Show("Please chose question type");
     }
 }