将复合对象绑定到树视图 WPF

Binding Composite Object to Tree View WPF

我有一个遵循复合设计模式的对象。我想使用树视图在 WPF 中显示此对象,但我无法正确绑定数据。我有两个 classes:Leaf,简单 class,没有任何子元素,Box,复合 class,有子元素,可以是 Leaf class 或 Box class。我还有一个名为 ITree

的通用接口

界面

public interface ITree
{
  string Name { get; }
  string Property1 { get; }
  string Property2 { get; } 
}

简单class

public class Leaf : ITree
{
  string ITree.Name { get { return _name; } }
  string ITree.Property1 { get { return property1; } }
  string ITree.Property2 { get { return property2; } }
}

复合class

public class Box : ITree
{
  string ITree.Name { get { return _name; } }
  string ITree.Property1 { get { return property1; } }
  string ITree.Property2 { get { return property2; } }
  List<ITree> Children = new List<ITree>();
}

xaml.cs

List<ITree> ListToBind = new List<ITree>();
ITree finalObject = PopulateCompositeObjeectWithData();
ListToBind.Add(finalObject);

xaml

<TreeView ItemsSource="{Binding ElementName=Window, Path= ListToBind}">
   <TreeView.ItemTemplate>
      <HierarchicalDataTemplate ItemsSource="{Binding Children}">
           <TextBlock Text="{Binding Name}"/>
       </HierarchicalDataTemplate>
   </TreeView.ItemTemplate>
</TreeView>

我想要实现的树视图:

Box - Name
  |-Leaf - Name
  |-Leaf - Name
  |-Box - Name
  |  |-Leaf - Name
  |  |-Leaf - Name

任何建议或代码示例将不胜感激

谢谢

首先,Children 必须是 public 属性 才能绑定到它:

public class Box : ITree
{
    string ITree.Name { get { return _name; } }
    string ITree.Property1 { get { return property1; } }
    string ITree.Property2 { get { return property2; } }
    public List<ITree> Children { get; } = new List<ITree>();
}

其次,您应该像这样使用括号绑定到显式实现的接口成员:

<TreeView ItemsSource="{Binding ElementName=Window, Path= ListToBind}">
    <TreeView.ItemTemplate>
        <HierarchicalDataTemplate ItemsSource="{Binding Children}">
            <TextBlock Text="{Binding (local:ITree.Name)}"/>
        </HierarchicalDataTemplate>
    </TreeView.ItemTemplate>
</TreeView>