绑定XML数据到一个TreeView

Question

我有这样一个xml：

<root> 
    <settings> 
    .... 
    ... 
    .. 
    </settings> 
    <cards> 
    <card name="firstcard"> 
     <question>bla</question> 
     <answer>blub</answer> 
    </card> 
    <card name="nextcard"> 
     <question>bla</question> 
     <answer>blub</answer> 
    </card> 
    </cards> 
</root> 

，我将其绑定到一个TreeView显示我卡的名字和子项。另外我会将它绑定到一个文本框来编辑节点（问题，答案）。我发现在计算器的描述：Two-way binding of Xml data to the WPF TreeView但我不能将其更改为我的需求:-( 下面是我的最后一次尝试：

<Window.Resources> 
    <HierarchicalDataTemplate DataType="cards" ItemsSource="{Binding XPath=card}"> 
     <TextBox Text="cards" /> 
    </HierarchicalDataTemplate> 
    <HierarchicalDataTemplate DataType="card"> 
     <StackPanel> 
      <TextBox Text="{Binding XPath=question}"></TextBox> 
      <TextBox Text="{Binding XPath=answer}" Margin="0,0,0,15"></TextBox> 
     </StackPanel> 
    </HierarchicalDataTemplate> 
    <XmlDataProvider x:Key="dataxml" XPath="root/cards" Source="path\cards.xml" /> 
</Window.Resources> 
.. 
... 
    <Label Content="question:"/> 
    <TextBox DataContext="{Binding ElementName=treeView, Path=SelectedItem}" 
      Text="{Binding XPath=question, UpdateSourceTrigger=PropertyChanged}"/> 
    <Label Content="answer:"/> 
    <TextBox DataContext="{Binding ElementName=treeView, Path=SelectedItem}" 
      Text="{Binding XPath=answer, UpdateSourceTrigger=PropertyChanged}"/> 
</Grid> 
<Grid> 
    <TreeView Name="treeView" ItemsSource="{Binding Source={StaticResource dataxml}, XPath=.}" /> 
</Grid> 

Answer 1

我有coldandtired :-) 的帮助下解决了这个问题，如果我我可以尔德纪念你的答案有用;-) 下面的工作代码：

<HierarchicalDataTemplate DataType="cards" ItemsSource="{Binding XPath=card}"> 
    <TextBox Text="somethings" /> 
</HierarchicalDataTemplate> 

<HierarchicalDataTemplate DataType="card"> 
    <StackPanel> 
     <TextBlock Text="{Binding XPath=@name}"/> 
     <TextBlock Text="{Binding XPath=question}"/> 
     <TextBlock Text="{Binding XPath=answer}" Margin="0,0,0,15"/> 
    </StackPanel> 
</HierarchicalDataTemplate> 
... 
.. 
.. 
<XmlDataProvider x:Key="dataxml" XPath="root/cards" Source="folder\cards.xml" /> 

     <Label Height="28" Content="Frage:" Margin="0,0,0,177" /> 
     <TextBox DataContext="{Binding ElementName=treeView, Path=SelectedItem}" Text="{Binding XPath=answer, UpdateSourceTrigger=PropertyChanged}" Margin="0,44,0,136" /> 
     <Label Height="28" Content="Antwort:" Margin="0,102,0,94" /> 
     <TextBox DataContext="{Binding ElementName=treeView, Path=SelectedItem}" Text="{Binding XPath=question, UpdateSourceTrigger=PropertyChanged}" Margin="0,136,0,0" /> 
    </Grid> 
    <Grid> 
     <TreeView Name="treeView" ItemsSource="{Binding Source={StaticResource dataxml}, XPath=.}"/> 
    </Grid> 

Answer 2

因为“名”是一个属性，而不是一个子节点，你需要使用XPath=@name，使其工作。

有由约什 - 史密斯一个很好的文章here