i need a complex returning type. i have 4 class returning types COMPLEXTYPE must include Company, Muayene, Radyoloji, Satis because i must return data switch case situation how can i do? Maybe i need generic collections How can i do that?

  public class GenoTipController
    {
        public COMPLEXTYPE Generate(DataModelType modeltype)
        {
            _Company company = null;
            _Muayene muayene = null;
            _Radyoloji radyoloji = null;
            _Satis satis = null;
            switch (modeltype)
            {
                case DataModelType.Radyoloji:
                    radyoloji = new Radyoloji();
                    return radyoloji;
                    break;
                case DataModelType.Satis:
                    satis = new Satis();
                    return satis;
                    break;
                case DataModelType.Muayene:
                    muayene = new Muayene();
                    return muayene;
                    break;
                case DataModelType.Company:
                    company = new Company();
                    return company;
                    break;
                default:
                    break;
            }


        }
    }

    public class CompanyView
    {
        public static List GetPersonel()
        {
            GenoTipController controller = new GenoTipController();
            _Company company = controller.Generate(DataModelType.Company);
             return company.GetPersonel();

        }

    }



    public enum DataModelType
    {
        Radyoloji,
        Satis,
        Muayene,
        Company
    }