Azure에서 데이터를 가져 와서 MainPage 및 ItemPage에 표시

Question

현재 Azure 모바일 서비스 SQL 데이터베이스에 저장된 응용 프로그램 데이터가 있습니다. 데이터베이스에서 항목을 가져 와서 목록보기에 표시하고 있습니다. 사용자가 목록보기에서 항목을 클릭하면 데이터베이스의 특정 레코드에 대한 자세한 정보를 표시하는 새 페이지로 이동합니다.

메인 페이지 코드 :

public class OSVersions 
{ 
    [JsonProperty(PropertyName = "id")] 
    public int id { get; set; } 

    [JsonProperty(PropertyName = "Version")] 
    public string Version { get; set; } 

    [JsonProperty(PropertyName = "Codename")] 
    public string Codename { get; set; } 

    [JsonProperty(PropertyName = "Publish")] 
    public bool Publish { get; set; } 

    [JsonProperty(PropertyName = "ReleaseDate")] 
    public DateTime ReleaseDate { get; set; } 

    [JsonProperty(PropertyName = "Changes")] 
    public string Changes { get; set; } 

    [JsonProperty(PropertyName = "Notes")] 
    public string Notes { get; set; } 
} 

public partial class OSMainVIew : PhoneApplicationPage 
{ 
    private MobileServiceCollection<OSVersions, OSVersions> items; 
    private IMobileServiceTable<OSVersions> osTable = 
     App.MobileService.GetTable<OSVersions>(); 

    public OSMainVIew() 
    { 
     InitializeComponent(); 
    } 

    private async void RefreshOSItems() 
    { 
     progressBar1.IsEnabled = true; 
     progressBar1.IsIndeterminate = true; 

     items = await osTable 
      .Where(OSItem => OSItem.Publish == true) 
      .ToCollectionAsync(); 

     MainListBox.ItemsSource = items; 

     progressBar1.IsEnabled = false; 
     progressBar1.Visibility = System.Windows.Visibility.Collapsed; 
     progressBar1.IsIndeterminate = false; 
    } 

    protected override void OnNavigatedTo(NavigationEventArgs e) 
    { 
     RefreshOSItems(); 
    } 

    private void MainListBox_SelectionChanged(object sender, SelectionChangedEventArgs e) 
    { 
     if (MainListBox.SelectedIndex == -1) 
      return; 

     NavigationService.Navigate(new Uri("/ViewModels/OS/OSItemView.xaml?selectedItem=" + MainListBox.SelectedIndex, UriKind.Relative)); 

     MainListBox.SelectedIndex = -1; 
    } 
} 

항목 페이지 코드 :

public partial class OSItemView : PhoneApplicationPage 
{ 
    private MobileServiceCollection<OSVersions, OSVersions> items; 
    private IMobileServiceTable<OSVersions> osTable = 
     App.MobileService.GetTable<OSVersions>(); 

    public OSItemView() 
    { 
     InitializeComponent(); 

     if ((Application.Current as App).IsTrial) 
     { 
      //textBlock1.Text = "Change Log available in full version only!"; 
      //textBlock2.Visibility = System.Windows.Visibility.Collapsed; 
     } 
    } 

    protected async override void OnNavigatedTo(NavigationEventArgs e) 
    { 
     string selectedIndex = ""; 
     int buildID; 
     int idValue; 

     if (NavigationContext.QueryString.TryGetValue("selectedItem", out selectedIndex)) 
     { 
      //Start progressBar 
      progressBar1.IsEnabled = true; 
      progressBar1.IsIndeterminate = true; 

      //Convert selectedIndex -> buildID 
      idValue = Convert.ToInt32(selectedIndex); 
      buildID = idValue + 1; 

      /* buildID = idValue + 1 becuase on OSMainView 
      * Items stored in the ListBox are each even an index number 
      * The first number is '0' 
      * This is a problem because the first IDNumber in the Database is '1' 
      * This isn't the best way to handle this, becuase even though the id field is an auto-increamental field, 
      * sometimes values are skipped and rows are deleted. 
      */ 

      //Query database 
      items = await osTable 
       .Where(OSItem => OSItem.id == buildID) 
       .ToCollectionAsync(); 

      MainListBox.ItemsSource = items; 

      //End progressBar 
      progressBar1.IsEnabled = false; 
      progressBar1.Visibility = System.Windows.Visibility.Collapsed; 
      progressBar1.IsIndeterminate = false; 
     } 
    } 
} 

항목 페이지 XAML 코드 :

<Grid x:Name="ContentPanel" Margin="10,97,12,0" Grid.RowSpan="2"> 
     <ListBox x:Name="MainListBox" Margin="10,-35,-12,0"> 
      <ListBox.ItemTemplate> 
       <DataTemplate> 
        <StackPanel Margin="0,0,0,0" Width="432" Height="*"> 
         <TextBlock TextWrapping="Wrap" Text="{Binding Version}" Style=" {StaticResource PhoneTextExtraLargeStyle}"/> 
         <TextBlock Text="Notes" FontFamily="Segoe WP Bold" Foreground="{StaticResource PhoneAccentBrush}" Height="30" HorizontalAlignment="Left" Margin="0,1,0,0" Name="textBlock3" Padding="0" VerticalAlignment="Top" Width="444" /> 
         <TextBlock x:Name="notesText" Text="{Binding Notes}" TextWrapping="Wrap" Style="{StaticResource PhoneTextNormalStyle}" Height="180" VerticalAlignment="Top" HorizontalAlignment="Stretch" FontFamily="Segoe WP SemiLight" Margin="0" Width="455"/> 
         <TextBlock Text="Change Log" Height="30" HorizontalAlignment="Left" Margin="0,222,0,0" Name="textBlock1" VerticalAlignment="Top" FontFamily="Segoe WP Bold" Foreground="{StaticResource PhoneAccentBrush}" Width="444" Padding="0" /> 
         <TextBlock Name="textBlock2" Text="{Binding Changes}" Style="{StaticResource PhoneTextNormalStyle}" TextWrapping="Wrap" Height="Auto" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" FontFamily="Segoe WP SemiLight" /> 
        </StackPanel> 
       </DataTemplate> 
      </ListBox.ItemTemplate> 
     </ListBox> 
    </Grid> 

MainListBox.ItemsSource = items;이 실행되면 내 문제가 발생합니다. 응용 프로그램이 오류 코드없이 종료됩니다.

아이디어가 있으십니까?

Answer 1

StackPanel의 높이가 '*'로 설정되어있어 문제가 발생했습니다. 제거한 후에 문제가 해결되었습니다.