將 TreeView 中 ChildButton 的標(biāo)記屬性綁定Tag="{Binding ParentData}"到類 TreeParent 的 ParentData 屬性的最佳方法是什么？<TreeView> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type local:TreeParent}" ItemsSource="{Binding Members}"> <Button x:Name="ParentButton" Text="{Binding ParentName}"> </Button> </HierarchicalDataTemplate> <DataTemplate DataType="{x:Type local:TreeChild}" ItemsSource="{Binding Members}"> <Button x:Name="ChildButton" Text="{Binding ChildName}" Tag="{Binding ParentData}"> </Button> </DataTemplate> </TreeView.Resources></TreeView>xaml 文件后面的 .cs 代碼如下所示：public class TreeParent{ public string ParentName { get; set; } public SomeDataClass ParentData { get; set; } public ObservableCollection<TreeChild> Members { get; set; }}public class TreeChild{ public string ChildName { get; set; }}
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嘗試這個：
<Button x:Name="ChildButton" ...
Tag="{Binding DataContext.ParentData,
RelativeSource={RelativeSource AncestorType=TreeViewItem, AncestorLevel=2}}" />- 1 回答
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