将字典值绑定到UserControl WPF的依赖项属性

我正试图将Dictionary中的一个Value绑定到我的tabcontrol.ContentTemplate.中的UserControl的DependencyProperty

就我而言，我无法将其绑定，我有一种强烈的感觉，这可能与用户控件"EnvironmentStateView"的DataContext有关，在本例中，它是一个视图模型。

在一个单独的TextBlock中，字典键的绑定适用于集合中的每个项目，但不幸的是，仅此而已

环境集合视图.xaml

<TabControl Name="EnvironmentCollectionTabControl" ItemsSource="{Binding environmentCollection}">
      <TabControl.ItemTemplate>
            <DataTemplate>
                <TextBlock Text="{Binding Key}"></TextBlock>
            </DataTemplate>
      </TabControl.ItemTemplate>
      <TabControl.ContentTemplate>
          <DataTemplate>
                <local:EnvironmentStateView Grid.Column="0" Grid.Row="0" EnvironmentObject="{Binding Value}" EnvironmentKey="{Binding Key}"></local:EnvironmentStateView>
          </DataTemplate>
      </TabControl.ContentTemplate>
</TabControl>

EnvironmentStateView.xaml

/// <summary>
/// Interaction logic for EnvironmentStateView.xaml
/// </summary>
[Export(typeof(EnvironmentStateView))]
public partial class EnvironmentStateView : UserControl
{
    /// <summary>
    /// Environment object dependency property
    /// </summary>
    public static readonly DependencyProperty EnvironmentObjectProperty =
        DependencyProperty.Register(
            "EnvironmentObject",
            typeof(Framework.Environment),
            typeof(EnvironmentStateView),
            new PropertyMetadata(null));
    /// <summary>
    /// Environment key dependency property
    /// </summary>
    public static readonly DependencyProperty EnvironmentKeyProperty =
        DependencyProperty.Register(
            "EnvironmentKey",
            typeof(string),
            typeof(EnvironmentStateView),
            new PropertyMetadata(null));
    [ImportingConstructor]
    public EnvironmentStateView()
    {
        // Set data context
        this.DataContext = new EnvironmentStateViewModel();
        // Initialise
        InitializeComponent();
    }
    /// <summary>
    /// Gets or sets the environment object
    /// </summary>
    public Framework.Environment EnvironmentObject
    {
        get { return (Framework.Environment)GetValue(EnvironmentObjectProperty); }
        set { SetValue(EnvironmentObjectProperty, value); }
    }
    /// <summary>
    /// Gets or sets the environment key
    /// </summary>
    public string EnvironmentKey
    {
        get { return (string)GetValue(EnvironmentObjectProperty); }
        set { SetValue(EnvironmentObjectProperty, value); }
    }
}

environmentstateview的DataContext被设置为视图模型，尽管删除它意味着它的DataContext为null，所以我猜它一开始并没有继承任何东西。

我的目标是让environmentCollectionView在其视图模型中使用environmentCollection Observable字典，将其作为项源绑定到选项卡，然后将集合中的各个环境对象传递给单独的用户控件，以处理与环境对象本身相关联的特定视图/视觉效果。

我认为我能做到这一点的唯一方法是将dictionary Value作为依赖属性传递，这样每个用户控件都可以做自己的事情：），当然这可能是一种糟糕的方法。

感谢提供的任何帮助

问候Wolfe

EDIT*已将UserControl更改为EnvironmentStateView

编辑*在修复之前的错误后，我注意到上出现了更多的绑定错误信息

System.Windows.Data Error: 40 : BindingExpression path error: 'Key' property not found on 'object' ''EnvironmentStateViewModel' (HashCode=63276897)'. BindingExpression:Path=Key; DataItem='EnvironmentStateViewModel' (HashCode=63276897); target element is 'EnvironmentStateView' (Name=''); target property is 'EnvironmentKey' (type 'String')
System.Windows.Data Error: 40 : BindingExpression path error: 'Value' property not found on 'object' ''EnvironmentStateViewModel' (HashCode=32159097)'. BindingExpression:Path=Value; DataItem='EnvironmentStateViewModel' (HashCode=32159097); target element is 'EnvironmentStateView' (Name=''); target property is 'EnvironmentObject' (type 'Environment')

现在Key和Value显然不在EnvironmentStateViewModel中，我想这就是当前的数据上下文。

我故意拼错了绑定到Keyy的EnvironmentTagTextBlock，这给了我绑定错误：

System.Windows.Data Error: 40 : BindingExpression path error: 'Keyy' property not found on 'object' ''KeyValuePair`2' (HashCode=-459631492)'. BindingExpression:Path=Keyy; DataItem='KeyValuePair`2' (HashCode=-459631492); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

所以我的猜测是，我需要以某种方式将我的DataItem从EnvironmentStateViewModel更改为KeyValuePair`2可能，但我不知道我应该如何或是否应该哈哈大笑。

public static readonly DependencyProperty EnvironmentObjectProperty =
    DependencyProperty.Register(
        "EnvironmentObject",
        typeof(Framework.Environment),
        typeof(EnvironmentStateView),
        new PropertyMetadata(null));