如何在AdornerLayer中的控件中进行数据绑定？

public class CustomAdorner : Adorner
{
    public static readonly DependencyProperty TextProperty =
        DependencyProperty.Register("Text", typeof(string), typeof(CustomAdorner), new PropertyMetadata(string.Empty));

    public string Text
    {
        get { return (string)GetValue(TextProperty); }
        set { SetValue(TextProperty, value); }
    }

    public CustomAdorner(UIElement adornedElement) : base(adornedElement)
    {
        // 添加需要绑定的控件
        var textBlock = new TextBlock();
        textBlock.SetBinding(TextBlock.TextProperty, new Binding("Text") { Source = this });
        // 其他控件的创建和绑定...

        var adornerLayer = AdornerLayer.GetAdornerLayer(adornedElement);
        adornerLayer.Add(this);
    }

    protected override void OnRender(DrawingContext drawingContext)
    {
        // 绘制Adorner的外观
        // ...
    }
}