C# Common.RelayCommand类代码示例

		public ZoneDevicesViewModel()
		{
			AddCommand = new RelayCommand<object>(OnAdd, CanAdd);
			RemoveCommand = new RelayCommand<object>(OnRemove, CanRemove);
			Devices = new ObservableCollection<ZoneDeviceViewModel>();
			AvailableDevices = new ObservableCollection<ZoneDeviceViewModel>();
		}

		public PlanDesignerView()
		{
			InitializeComponent();

			_scrollViewer.PreviewMouseDown += OnMouseMiddleDown;
			_scrollViewer.PreviewMouseUp += OnMouseMiddleUp;
			_scrollViewer.PreviewMouseMove += OnMiddleMouseMove;
			_scrollViewer.MouseLeave += OnMiddleMouseLeave;

			_scrollViewer.PreviewMouseWheel += OnPreviewMouseWheel;
			_scrollViewer.ScrollChanged += OnScrollViewerScrollChanged;

			slider.ValueChanged += OnSliderValueChanged;
			deviceSlider.ValueChanged += new RoutedPropertyChangedEventHandler<double>(deviceSlider_ValueChanged);

			Loaded += new RoutedEventHandler(OnLoaded);
			_scrollViewer.SizeChanged += new SizeChangedEventHandler(OnSizeChanged);
			_scrollViewer.LayoutUpdated += new EventHandler(OnLayoutUpdated);
			_timer = new DispatcherTimer()
			{
				Interval = TimeSpan.FromMilliseconds(100),
				IsEnabled = false,
			};
			_timer.Tick += (s, e) => _locked = false;
			_requreRefresh = true;
			_locked = true;
			Dispatcher.ShutdownStarted += (s, e) => RegistrySettingsHelper.SetDouble(DeviceZoomSetting, deviceSlider.Value);
			ZoomInCommand = new RelayCommand(OnZoomIn, CanZoomIn);
			ZoomOutCommand = new RelayCommand(OnZoomOut, CanZoomOut);
			DeviceZoomInCommand = new RelayCommand(OnDeviceZoomIn, CanDeviceZoomIn);
			DeviceZoomOutCommand = new RelayCommand(OnDeviceZoomOut, CanDeviceZoomOut);
		}

 public UsersViewModel()
 {
     Menu = new UsersMenuViewModel(this);
     DeleteCommand = new RelayCommand(OnDelete, CanDelete);
     EditCommand = new RelayCommand(OnEdit, CanEdit);
     AddCommand = new RelayCommand(OnAdd);
 }

		public DescriptorViewModel(BaseDescriptor descriptor)
		{
			GKBaseDescriptor = descriptor;
			GKDescriptorNo = descriptor.GKBase.GKDescriptorNo;
			KauDescriptorNo = descriptor.GKBase.KAUDescriptorNo;

			SetAutomaticRegimeCommand = new RelayCommand(OnSetAutomaticRegime);
			SetManualRegimeCommand = new RelayCommand(OnSetManualRegime);
			SetIgnoreRegimeCommand = new RelayCommand(OnSetIgnoreRegime);
			ShowParametersCommand = new RelayCommand(OnShowParameters);
			ShowMeasureCommand = new RelayCommand(OnShowMeasure);
			ShowCardReaderCommand = new RelayCommand(OnShowCardReader);

			InitializeTest();
			InitializeDustiness();
			InitializeController();
			InitializeTypeNo();
			InitializeFire();
			InitializeTurning();
			InitializeLogic();
			InitializeDelays();
			InitializeAll();

			AdditionalShortParameters = new List<ushort>();
			for (int i = 0; i < 10; i++)
			{
				AdditionalShortParameters.Add(0);
			}
		}

		public CameraDetailsViewModel(Camera camera)
		{
			ShowCommand = new RelayCommand(OnShow);
			SetPtzPresetCommand = new RelayCommand(OnSetPtzPreset, CanSetPtzPreset);
			AlarmSetChannelCommand = new RelayCommand(OnAlarmSetChannel, CanAlarmSetChannel);
			AlarmDisableChannelCommand = new RelayCommand(OnAlarmDisableChannel, CanAlarmDisableChannel);
			Camera = camera;
			Title = Camera.PresentationName;
			Camera.StatusChanged += OnCameraStatusChanged;

			Presets = new ObservableCollection<int>();
			for (int i = 0; i < camera.CountPresets; i++)
			{
				Presets.Add(i + 1);
			}
			SelectedPreset = Presets.FirstOrDefault();

			if (Camera != null)
			{
				Width = Camera.ShowDetailsWidth;
				Height = Camera.ShowDetailsHeight;
				MarginLeft = Camera.ShowDetailsMarginLeft;
				MarginTop = Camera.ShowDetailsMarginTop;
				IsRecordOnline = Camera.IsRecordOnline;
				IsOnGuard = Camera.IsOnGuard;
				Status = Camera.Status;
				PlanLinks = new PlanLinksViewModel(Camera);
			}
		}

		public DoorViewModel(GKDoor door)
		{
			Door = door;
			DoorDetailsViewModel = new DoorDetailsViewModel(door);
			State.StateChanged -= OnStateChanged;
			State.StateChanged += OnStateChanged;
			OnStateChanged();

			EnterDevice = GKManager.Devices.FirstOrDefault(x => x.UID == Door.EnterDeviceUID);
			ExitDevice = GKManager.Devices.FirstOrDefault(x => x.UID == Door.ExitDeviceUID);
			EnterButton = GKManager.Devices.FirstOrDefault(x => x.UID == Door.EnterButtonUID);
			ExitButton = GKManager.Devices.FirstOrDefault(x => x.UID == Door.ExitButtonUID);
			LockDevice = GKManager.Devices.FirstOrDefault(x => x.UID == Door.LockDeviceUID);
			LockDeviceExit = GKManager.Devices.FirstOrDefault(x => x.UID == Door.LockDeviceExitUID);
			LockControlDevice = GKManager.Devices.FirstOrDefault(x => x.UID == Door.LockControlDeviceUID);
			LockControlDeviceExit = GKManager.Devices.FirstOrDefault(x => x.UID == Door.LockControlDeviceExitUID);
			EnterZone = GKManager.SKDZones.FirstOrDefault(x => x.UID == Door.EnterZoneUID);
			ExitZone = GKManager.SKDZones.FirstOrDefault(x => x.UID == Door.ExitZoneUID);

			ShowOnPlanCommand = new RelayCommand(OnShowOnPlan, CanShowOnPlan);
			ShowJournalCommand = new RelayCommand(OnShowJournal);
			ShowPropertiesCommand = new RelayCommand(OnShowProperties);
			ShowOnPlanOrPropertiesCommand = new RelayCommand(OnShowOnPlanOrProperties);
			ShowDeviceCommand = new RelayCommand<GKDevice>(OnShowDevice);
			ShowZoneCommand = new RelayCommand<GKSKDZone>(OnShowZone);
		}

		public DeviceDetailsViewModel(Device device)
		{
			ExecuteCommand = new RelayCommand(OnExecute);
			DeviceCommands = new List<DeviceCommandViewModel>();
			Device = device;
			DeviceState = Device.DeviceState;
			DeviceState.StateChanged += new Action(OnStateChanged);
			DeviceState.ParametersChanged += new Action(OnParametersChanged);
			OnStateChanged();

			Title = Device.DottedPresentationAddressAndName;
			TopMost = true;

			var tableNo = MetadataHelper.GetDeviceTableNo(device);
			var metadataDeviceCommands = MetadataHelper.Metadata.devicePropInfos.Where(x => x.tableType == tableNo);
			foreach (var metadataDeviceCommand in metadataDeviceCommands)
			{
				var deviceCommandViewModel = new DeviceCommandViewModel()
				{
					Name = metadataDeviceCommand.name,
					Caption = metadataDeviceCommand.caption,
				};
				DeviceCommands.Add(deviceCommandViewModel);
			}
			SelectedDeviceCommand = DeviceCommands.FirstOrDefault();
		}

		public TariffDetailsViewModel(Tariff tariff = null)
		{
			EditDevicesCommand = new RelayCommand(OnEditDevicesCommand);
			TariffTypes = new ObservableCollection<TariffType>(Enum.GetValues(typeof(TariffType)).Cast<TariffType>());
			TariffParts = new ObservableCollection<TariffPartViewModel>();
			if (tariff == null)
			{
				IsNew = true;
				Tariff = new Tariff
					{
						Description = "",
						Devices = new List<Device>(),
						Name = "Новый тариф",
						TariffParts = new List<TariffPart>(),
					};
				Title = "Создание нового тарифа";
				SelectedTariffPartsNumber = 1;
			}
			else
			{
				IsNew = false;
				Tariff = tariff;
				Title = "Редактирование тарифа: " + tariff.TariffType.ToDescription();
				SelectedTariffPartsNumber = tariff.TariffParts.Count;
				SelectedTariffType = tariff.TariffType;
			}
			GetMaxTariffParts();
		}

		public LayoutPartDescriptionViewModel(ILayoutPartDescription layoutPartDescription)
		{
			LayoutPartDescription = layoutPartDescription;
			VisualizationState = VisualizationState.Prohibit;
			AddCommand = new RelayCommand(OnAddCommand, CanAddCommand);
			DragCommand = new RelayCommand(OnDragCommand, CanAddCommand);
		}

		public MainViewModel()
		{
			Current = this;
			Title = "Сервер ОПС FS2";
			ExitCommand = new RelayCommand(OnExit);
			ShowLogCommand = new RelayCommand(OnShowLog);
		}

		public MPTDeviceViewModel(GKMPTDevice mptDevice)
		{
			MPTDevice = mptDevice;
			Device = mptDevice.Device;
			MPTDevicePropertiesViewModel = new MPTDevicePropertiesViewModel(Device, false);
			ShowPropertiesCommand = new RelayCommand(OnShowProperties, CanShowProperties);
		}

		public DesignerItemBase(ElementBase element)
			: base(element)
		{
			_contextMenu = null;
			ShowPropertiesCommand = new RelayCommand(OnShowProperties);
			DeleteCommand = new RelayCommand(OnDelete);
		}

 public MainViewModel()
 {
     Current = this;
     ShowImitatorCommand = new RelayCommand(OnShowImitator);
     Clients = new ObservableCollection<ClientViewModel>();
     Title = "Сервер ОПС FireSec-2";
 }

		public CameraDetailsViewModel(Camera camera = null)
		{
			ShowZonesCommand = new RelayCommand(OnShowZones);
			TestCommand = new RelayCommand(OnTest);
			StateClasses = new List<XStateClass>();
			StateClasses.Add(XStateClass.Fire1);
			StateClasses.Add(XStateClass.Fire2);
			StateClasses.Add(XStateClass.Attention);
			StateClasses.Add(XStateClass.Ignore);

			if (camera != null)
			{
				Title = "Редактировать камеру";
				Camera = camera;
			}
			else
			{
				Title = "Создать камеру";
				Camera = new Camera()
				{
					Name = "Новая камера",
					Address = "192.168.0.1"
				};
			}

			CopyProperties();
		}

		public ValidationErrorsViewModel()
		{
			ClickCommand = new RelayCommand(OnClick);
			EditValidationCommand = new RelayCommand(OnEditValidation);
			CloseValidationCommand = new RelayCommand(OnCloseValidation);
			Validate();
		}