public bool presist(VacancyKillerQuestionDTO entity)
    {
        try
        {
            model.VacancyKillerQuestion obj = new VacancyKillerQuestion();
            obj.question = entity.question;
            obj.vacancyNumber = entity.vacancyNumber;
            obj.answer = entity.answer;

            ctx.VacancyKillerQuestions.InsertOnSubmit(obj);
            ctx.SubmitChanges();
            return true;
        }
        catch (Exception)
        {
            ctx.Dispose();
            ctx = new ModelDataContext();
            return false;
        }
    }
 partial void DeleteVacancyKillerQuestion(VacancyKillerQuestion instance);
 partial void InsertVacancyKillerQuestion(VacancyKillerQuestion instance);
 partial void UpdateVacancyKillerQuestion(VacancyKillerQuestion instance);
		private void detach_VacancyKillerQuestions(VacancyKillerQuestion entity)
		{
			this.SendPropertyChanging();
			entity.Vacancy = null;
		}