c# - 如何将分层数据数据绑定(bind)到 WPF TreeView？

Question

类型看起来像这样:

class Category
{
    public string Name;
    public string Message;

    public ObservableCollection<Category> SubCategories;
}

其中有 5 个类别，其中每个类别包含 0(无)到 3 之间的子类别。

我知道如何将非分层数据绑定(bind)到 WPF TreeView，但无法弄清楚分层数据值。

Answer 1

这是一个例子......

<!-- Create a TreeView, and have it source data from
       the AnimalCategories collection -->
  <TreeView ItemsSource="{x:Static local:Window1.AnimalCategories}">
 
    <!-- Specify the template that will display a node
         from AnimalCategories.  I.e., one each for “Amphibians”
         and “Spiders” in this sample.  It will get its nested
         items from the "Animals" property of each item -->
    <TreeView.ItemTemplate>
      <HierarchicalDataTemplate ItemsSource="{Binding Path=Animals}">
 
        <!-- Display the AnimalCategory by showing it's Category string -->
        <TextBlock FontWeight="Bold" Text="{Binding Path=Category}" />
 
        <!-- Specify the nested template for the individual Animal items
             that are within the AnimalCategories.  E.g. “California Newt”, etc. -->
        <HierarchicalDataTemplate.ItemTemplate>
          <DataTemplate>
            <TextBlock Text="{Binding Path=Name}"/>
          </DataTemplate>
        </HierarchicalDataTemplate.ItemTemplate>
       
      </HierarchicalDataTemplate>
    </TreeView.ItemTemplate>
  </TreeView>

此代码来自here我想，阅读那篇文章可能对您更有帮助。