public PatientRegisterViewModel(IPatientService patientService)
 {
     _patientService = patientService;
     Sexes           = Enum.GetValues(typeof(Sex)).Cast <Sex>();
     RegisterPatient = new RelayCommand(ExecuteRegistration);
     SelectedSex     = Sexes.First();
 }
        public RegistrationViewModel(ApplicationManager appManager)
        {
            _appManager          = appManager;
            _countriesRepository = new CountriesRepository();

            SelectedCountry = Countries.First();
            SelectedSex     = Sexes.First();
            SelectedAge     = Ages.First();
        }