AdventureWorks.UILogic.ViewModels.ShoppingCartTabUserControlViewModel.ShoppingCartTabUserControlViewModel C# (CSharp) Метод

        public ShoppingCartTabUserControlViewModel(IShoppingCartRepository shoppingCartRepository, IEventAggregator eventAggregator, IAlertMessageService alertMessageService, IResourceLoader resourceLoader, IAccountService accountService)
        {
            // ItemCount will be set using async method call.
            _itemCount = 0;

            _shoppingCartRepository = shoppingCartRepository;
            _alertMessageService = alertMessageService;
            _resourceLoader = resourceLoader;
            _accountService = accountService;

            if (eventAggregator != null)
            {
                // Documentation on loosely coupled communication is at http://go.microsoft.com/fwlink/?LinkID=288820&clcid=0x409
                eventAggregator.GetEvent<ShoppingCartUpdatedEvent>().Subscribe(UpdateItemCountAsync);
                eventAggregator.GetEvent<ShoppingCartItemUpdatedEvent>().Subscribe(UpdateItemCountAsync);
            }

            // Start process of updating item count.
            UpdateItemCountAsync(null);
        }