public MainViewModel( INavigationService navigationService, IResourceService resourceService, IDialogService dialogService, SettingsService settingsService, HomeControlService homeControlService, RoomViewModel roomViewModel) : base(navigationService, resourceService, dialogService) { _SettingsService = settingsService; _HomeControlService = homeControlService; _RoomViewModel = roomViewModel; //Rooms = new ObservableCollection<Room>(); if (IsInDesignMode) { Rooms = DesignData.GetDemoRooms(); } }