public AddExpensePageViewModel(INavigationService navigationService, IApiService apiService, IFilesHelper filesHelper) : base(navigationService) { _navigationService = navigationService; _apiService = apiService; _filesHelper = filesHelper; Title = Languages.AddExpense; Image = App.Current.Resources["UrlNoImage"].ToString(); IsRunning = false; IsEnabled = true; _user = JsonConvert.DeserializeObject <UserResponse>(Settings.User); _trip = JsonConvert.DeserializeObject <TripResponse>(Settings.TripSelected); ExpenseTypes = new ObservableCollection <ExpenseType>(CombosHelper.GetExpenseTypes()); Expense = new ExpenseRequest { Date = DateTime.UtcNow.ToLocalTime() }; }