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

        public SignInFlyoutViewModel(IAccountService accountService, IAlertMessageService alertMessageService, IResourceLoader resourceLoader)
        {
            _accountService = accountService;
            _alertMessageService = alertMessageService;
            _resourceLoader = resourceLoader;
            if (accountService != null)
            {
                _lastSignedInUser = _accountService.SignedInUser;
            }

            SignInCommand = DelegateCommand.FromAsyncHandler(SignInAsync, CanSignIn);
        }