public ProductBundleForm(IProductBundleService productBundleService, IProductService productService)
        {
            InitializeComponent();
            lblBundleName.Text = "";
            lblErrors.Text     = "";

            _productBundleService = productBundleService;
            _productService       = productService;
        }
        public QuestionsForm(IProductBundleService productBundleService, IProductService productService, IAnswerService answerService)
        {
            _productBundleService = productBundleService;
            _productService       = productService;
            _answerService        = answerService;
            InitializeComponent();


            _answerService = answerService;

            var possibleAgeQuestionAnswers     = answerService.GetPossibleAgeQuestionAnswers();
            var possibleStudentQuestionAnswers = answerService.GetPossibleStudentQuestionAnswers();
            var possibleIncomeQuestionAnswers  = answerService.GetPossibleIncomeQuestionAnswers();

            chLbxAge.DataSource     = possibleAgeQuestionAnswers;
            chLbxStudent.DataSource = possibleStudentQuestionAnswers;
            chLbxIncome.DataSource  = possibleIncomeQuestionAnswers;
        }