public CreateUserViewModel(ICreateUserService createUserService) { _createUserService = createUserService; PreferredLanguage = "da"; Create = new RelayCommand( async parameter => { await _createUserService.CreateUserAsync( new User(Name, Email, Phone, PreferredLanguage) ); Name = string.Empty; Email = string.Empty; Phone = string.Empty; }, parameter => this.HasOverallError() == false ); }