綁定XML數據到一個TreeView

Question

我有這樣一個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> 

，我將其綁定到一個TreeView顯示我卡的名字和子項。另外我會將它綁定到一個文本框來編輯節點（問題，答案）。我發現在計算器的描述：Two-way binding of Xml data to the WPF TreeView但我不能將其更改爲我的需求:-( 下面是我的最後一次嘗試：

<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 :-) 的幫助下解決了這個問題，如果我我可以爾德紀念你的答案有用;-) 下面的工作代碼：

<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

因爲「名」是一個屬性，而不是一個子節點，你需要使用XPath=@name，使其工作。

有由約什 - 史密斯一個很好的文章here