ArcMapAddinDistanceAndDirection.ViewModels.TabBaseViewModel.TabBaseViewModel C# (CSharp) Метод

        public TabBaseViewModel()
        {
            //properties
            LineType = LineTypes.Geodesic;
            LineDistanceType = DistanceTypes.Meters;

            //commands
            SaveAsCommand = new RelayCommand(OnSaveAs);
            ClearGraphicsCommand = new RelayCommand(OnClearGraphics);
            ActivateToolCommand = new RelayCommand(OnActivateTool);
            EnterKeyCommand = new RelayCommand(OnEnterKeyCommand);
            EditPropertiesDialogCommand = new RelayCommand(OnEditPropertiesDialogCommand);

            // Mediator
            Mediator.Register(Constants.NEW_MAP_POINT, OnNewMapPointEvent);
            Mediator.Register(Constants.MOUSE_MOVE_POINT, OnMouseMoveEvent);
            Mediator.Register(Constants.TAB_ITEM_SELECTED, OnTabItemSelected);

            configObserver = new PropertyObserver<DistanceAndDirectionConfig>(DistanceAndDirectionConfig.AddInConfig)
            .RegisterHandler(n => n.DisplayCoordinateType, n =>
            {
                RaisePropertyChanged(() => Point1Formatted);
                RaisePropertyChanged(() => Point2Formatted);
            });

        }