public TransportSelectionViewModel(NavigationViewModel navigationViewModel) { RailwayCommand = new DelegateCommand(() => navigationViewModel.Show(new TrainParametersViewmodel(navigationViewModel))); BusStolbtcyCommand = new DelegateCommand(() => navigationViewModel.Show(new BusParametersViewmodel(navigationViewModel, new StolbtcyModel()))); BusAtlasCommand = new DelegateCommand(() => navigationViewModel.Show(new BusParametersViewmodel(navigationViewModel, new AtlasBaseBusModel()))); }