private ObservableCollection <Car> GetProducts() { SqlConnectionCarsHistory spam = new SqlConnectionCarsHistory(); ObservableCollection <Car> carsDB = spam.GiveUsersRecords(PhoneNumber); CarsCollection = new ObservableCollection <Car>(); if (carsDB != null) { foreach (var item in carsDB) { CarsCollection.Add(item); } } return(CarsCollection); }