列表框在反序列化後不會更新

我想顯示我的窗口右側列出的項目。當我第一次初始化我的窗戶時，一切都很完美。我所做的是，我反序列化一個文件，並得到我的ObservableCollection<Model.Resources>。列表框中顯示了我列表中的所有項目。當我進入我的添加資源窗口並添加更多資源時，我將這些對象序列化到一個文件中。當我完成添加時，我打電話給一個名爲refresh()的方法，它將一些文件反序列化並更新我的ObservableCollection<Model.Resources>。當我完成後，ListBox不會更新，直到我重新啓動我的程序。列表框在反序列化後不會更新

XAML我的窗口有列表框：

<ListBox x:Name="itemList" Grid.Column="1" HorizontalAlignment="Stretch" Margin="7,23,6,0" Grid.Row="1" VerticalAlignment="Stretch" Background="#324251" ItemsSource="{Binding Path=resources}" FontSize="16" Foreground="Wheat"/>

我的窗口類的相關代碼：

public partial class GlowingEarth : Window, INotifyPropertyChanged 
{ 
    private ObservableCollection<Model.Etiquette> _tags; 
    private ObservableCollection<Model.Resource> _resources; 
    private ObservableCollection<Model.Type> _types; 
    public ObservableCollection<Model.Etiquette> tags 
    { 
     get 
     { 
      return _tags; 
     } 
     set 
     { 
      _tags = value; 
      OnPropertyChanged("tags"); 
     } 
    } 
    public ObservableCollection<Model.Resource> resources 
    { 
     get 
     { 
      return _resources; 
     } 
     set 
     { 
      _resources = value; 
      OnPropertyChanged("resources"); 
     } 
    } 
    public ObservableCollection<Model.Type> types 
    { 
     get 
     { 
      return _types; 
     } 
     set 
     { 
      _types = value; 
      OnPropertyChanged("types"); 
     } 
    } 

    private BinaryFormatter fm; 
    private FileStream sm = null; 
    private string path; 

    public event PropertyChangedEventHandler PropertyChanged; 
    protected void OnPropertyChanged(string name) 
    { 
     if (PropertyChanged != null) 
     { 
      PropertyChanged(this, new PropertyChangedEventArgs(name)); 
     } 
    } 

    public GlowingEarth() 
    { 
     InitializeComponent(); 
     tags = new ObservableCollection<Model.Etiquette>(); 
     resources = new ObservableCollection<Model.Resource>(); 
     types = new ObservableCollection<Model.Type>(); 
    } 
    private void Window_Loaded(object sender, RoutedEventArgs e) 
    { 
     refresh(); 
    } 

public void refresh() 
    { 
     path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "typeList"); 
     if (File.Exists(path)) 
     { 
      fm = new BinaryFormatter(); 
      sm = File.OpenRead(path); 
      _types = (ObservableCollection<Model.Type>)fm.Deserialize(sm); 
      sm.Dispose(); 
     } 
     else 
     { 
      return; 
     } 
     path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "tagList"); 
     if (File.Exists(path)) 
     { 
      fm = new BinaryFormatter(); 
      sm = File.OpenRead(path); 
      _tags = (ObservableCollection<Model.Etiquette>)fm.Deserialize(sm); 
      sm.Dispose(); 
     } 
     else 
     { 
      return; 
     } 
     path = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "reslist"); 
     if (File.Exists(path)) 
     { 
      fm = new BinaryFormatter(); 
      sm = File.OpenRead(path); 
      _resources = (ObservableCollection<Model.Resource>)fm.Deserialize(sm); 
      sm.Dispose(); 
     } 
     else 
     { 
      return; 
     } 
     InitializeComponent(); 
     this.DataContext = this; 
    }

能否請你告訴我，這到底是怎麼回事，爲什麼ISN」我的名單更新？

來源

2017-04-24 Riki

在refresh()方法更改了字段的值

_resources = (ObservableCollection<Model.Resource>)fm.Deserialize(sm);

它不叫OnPropertyChanged("resources");

你應該使用resources財產

resources = (ObservableCollection<Model.Resource>)fm.Deserialize(sm);

同爲_types和_tags

來源

2017-04-24 19:00:49 ASh

我的善良先生，你是對的！我謝謝你！ – Riki

@Riki，如果答案對您有幫助，請將其標記爲已接受 – ASh

列表框在反序列化後不會更新

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