C# (CSharp) DAL Idal.SpecializationExist примеры использования

Пример #1

        //expert
        public void addExpert(Specialization s)
        {
            int ID = s.specializationNumber;

            if (Dal.SpecializationExist(ID))
            {
                throw new NotImplementedException("This specialization id is already use");
            }
            else
            {
                Dal.addExpert(s);
            }
        }