private void InitializeProperties()
        {
            IValidateIfInterfaceIsImplemented validator = new ViewModel.Validators.InterfaceImplementValidator();

            Navigator = new ViewNavigator(validator, new PatientsPage());
            // TODO: Dodać pozostałe Page
            TypeProvider = new ViewModel.DataProvider.NavigationPageTypeProvider(validator,
                                                                                 new List <Type>
            {
                typeof(PatientsPage), typeof(DoctorsPage), typeof(AdmissionsPage), typeof(DiagnosesPage),
                typeof(RoomsPage), typeof(SurgeriesPage), typeof(NewAdmissionPage),
            });
            Navigator.SetParameter(new Action(() => Navigator.ChangeFrame(typeof(NewAdmissionPage), mainFrame)));
            Type pageType = TypeProvider.GetTypeFromString("AdmissionsPage");

            Navigator.ChangeFrame(pageType, mainFrame);
            Navigator.RemoveParameters();
        }