Question

我正在尝试以最简单的方式绑定列表框，目的是更好地理解绑定。我在网上看到的所有例子都显示了数据模板，我不想让它复杂化。我有一组对象。这些对象具有字符串类型的属性，这就是我想在列表框中显示的内容。以下是所有代码。运行时没有任何东西出现。我错过了什么？

// The simple object
public class GameData 
{
  public string Team { get; set; }
}

// Window1.xaml
<Grid>
  <ListBox ItemSource="{Binding GameCollection}" DisplayMemberPath="Team"></ListBox>
</Grid>

// Window1.xaml.cs file
public partial class Window1 : Window
{
  //public ObservableCollection<GameData> GameCollection;
  // Changed to property per SLaks idea but still no luck
  public ObservableCollection<GameData> GameCollection
  {
    get;
    set;
  }


  public Window1()
  {
    GameCollection = new ObservableCollection<GameData>();
    GameCollection.Add("Tigers");
    GameCollection.Add("Indians");
    GameCollection.Add("Royals");

    InitializeComponent();
  }
}

Answer 1

删除您的GameCollection字段，然后设置Window的{{1}}。

然后，您可以使用DataContext直接绑定到DataContext。

Answer 2

以下是我为使其发挥作用而做出的一些改变：

// The simple object
public class GameData
{
    public string Team { get; set; }
}

public partial class Window1 : Window
{
    public ObservableCollection<GameData> GameCollection { get; set; }

    public Window1()
    {
        this.DataContext = this;
        GameCollection = new ObservableCollection<GameData>();
        GameCollection.Add(new GameData(){Team = "Tigers"});
        GameCollection.Add(new GameData(){Team = "Royals" });
        GameCollection.Add(new GameData(){Team = "Indians" });

        InitializeComponent();
    }
}


<Grid>
    <ListBox ItemsSource="{Binding GameCollection}" DisplayMemberPath="Team"/>
</Grid>

这个简单的绑定有什么问题？

2 个答案: