public ConfigPanelViewModel(IEventAggregator eventAggregator, IConfigService configService, IConfController confController) { _configService = configService; _confController = confController; _eventAggregator = eventAggregator; ComfirmCommand = new DelegateCommand(ConfirmExecuted); CancelCommand = new DelegateCommand(CancelExecuted); _confController.IsAvailableApplyHandler += OnIsAvailableApplyChanged; }