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I have created the database and all the coding. But the Information are now appearing in phone. How can I make them appearing? it could not show me any details. it shows me that it cannot go to this line from coding "this.listBox.ItemsSource = CarScores;"

//Main Page Coding .xaml.CS
 namespace carDatabaseCreater
{
 public partial class MainPage : PhoneApplicationPage
 {

    public static List<Car> CarScoresList = new List<Car>();
    Uri uri;
    Grid CarGrid;
    CarHisrotyRepository CarHisrotyRepository;
    ObservableCollection<Car> CarScores;


    // Constructor
    public MainPage()
    {
        InitializeComponent();


        this.DisplayCarHistory();
        this.UpdateCarScoresFromDB();
    }


      public void SaveCarToCarHistory(Car _Car)
      {
           CarHisrotyRepository _CarHisrotyRepository = new CarHisrotyRepository();

         Car item0 = new Car() { CarName = "Arion", CarSupplierName = "Bahowan", CarImage = "Image/BMW.jpg", CarCompanyName = "Toyota" };
         Car item1 = new Car() { CarName = "Arion", CarSupplierName = "Bahowan", CarImage = "Image/BMW.jpg", CarCompanyName = "Toyota" };
         Car item2 = new Car() { CarName = "Arion", CarSupplierName = "Bahowan", CarImage = "Image/BMW.jpg", CarCompanyName = "Toyota" };
         Car item3 = new Car() { CarName = "Arion", CarSupplierName = "Bahowan", CarImage = "Image/BMW.jpg", CarCompanyName = "Toyota" };
         Car item4 = new Car() { CarName = "Arion", CarSupplierName = "Bahowan", CarImage = "Image/BMW.jpg", CarCompanyName = "Toyota" };
         CarScoresList.Add(item0);
         _CarHisrotyRepository.Save(item0);
        CarScoresList.Add(item1);
         _CarHisrotyRepository.Save(item1);
         CarScoresList.Add(item2);
         _CarHisrotyRepository.Save(item2);
         CarScoresList.Add(item3);
         _CarHisrotyRepository.Save(item3);
         CarScoresList.Add(item4);
         _CarHisrotyRepository.Save(item4);


     }

     private void UpdateCarScoresFromDB()
     {
         CarHisrotyRepository CarHisrotyRepository = new carDatabaseCreater.CarHisrotyRepository();

         List<Car> AllGames = CarHisrotyRepository.allQuery(CarHisrotyRepository.CarContext).ToList();


         }


     public void DisplayCarHistory()
     {
         this.CarHisrotyRepository = new CarHisrotyRepository();

         // Get Game History from IsoStore
         List<Car> CarHistory = this.CarHisrotyRepository.Load();

         // Display to Screen
        CarScores = new ObservableCollection<Car>(CarHistory);
        this.listBox.ItemsSource = CarScores;// the Error appears here
      }

    }
   }
4

1 回答 1

0

I dont see any line of code where you put the cars grid to the visual tree. Maybe this is the reason?

于 2013-06-22T08:43:31.380 回答