玩一个：可以显示任何xml树结构的xaml定义

学习中， 玩一玩。 效果如下。Xaml随后。

<Page

  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

  xmlns:y="clr-namespace:System.Xml;assembly=system.xml"

  >

  <Page.Resources>

    <XmlDataProvider x:Key="xdata" Source="C:\dev\UpgradeLog.XML">

    </XmlDataProvider>

    <HierarchicalDataTemplate x:Key="h1" ItemsSource="{Binding XPath=node()|@*}" >

      <StackPanel Orientation="Horizontal">

      <StackPanel x:Name="attrib" Visibility="Collapsed" Orientation="Horizontal">

        <TextBlock Text="@"/>

        <TextBlock Text="{Binding Path=Name}"/>

        <TextBlock Text="='"/>

        <TextBlock Text="{Binding Path=Value}"/>

        <TextBlock Text="'"/>

      </StackPanel>

      <StackPanel x:Name="ele" Visibility="Collapsed" Orientation="Horizontal">

        <TextBlock Text="{Binding Path=Name}"/>

        <TextBlock Text=" ChildCount="/>

        <TextBlock Text="{Binding Path=ChildNodes.Count}"/>

      </StackPanel>

      <StackPanel x:Name="txt" Visibility="Collapsed" Orientation="Horizontal">

        <TextBlock Text="Text()="/>

        <TextBlock Text="{Binding XPath=.}"/>

      </StackPanel>

      <StackPanel x:Name="comment" Visibility="Collapsed" Orientation="Horizontal">

        <TextBlock Text="comment()="/>

        <TextBlock Text="{Binding Path=InnerText}"/>

      </StackPanel>

      <StackPanel x:Name="pi" Visibility="Collapsed" Orientation="Horizontal">

        <TextBlock Text="pi="/>

        <TextBlock Text="{Binding Path=Name}"/>

      </StackPanel>

      </StackPanel>

      <HierarchicalDataTemplate.Triggers>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="Attribute">

         <Setter  TargetName="attrib" Property="Visibility" Value="Visible"/>

        </DataTrigger>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="Element">

         <Setter  TargetName="ele" Property="Visibility" Value="Visible"/>

        </DataTrigger>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="Text">

         <Setter  TargetName="txt" Property="Visibility" Value="Visible"/>

        </DataTrigger>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="CDATA">

         <Setter  TargetName="txt" Property="Visibility" Value="Visible"/>

        </DataTrigger>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="Comment">

         <Setter  TargetName="comment" Property="Visibility" Value="Visible"/>

        </DataTrigger>

        <DataTrigger Binding="{Binding Path=NodeType}" Value="ProcessingInstruction">

         <Setter  TargetName="pi" Property="Visibility" Value="Visible"/>

        </DataTrigger>

      </HierarchicalDataTemplate.Triggers>

    </HierarchicalDataTemplate>

  </Page.Resources>

  <Grid>

  <Grid.RowDefinitions>

  <RowDefinition/>

  </Grid.RowDefinitions>

  <TreeView Grid.Row="0" DataContext="{StaticResource xdata}" ItemsSource="{Binding XPath=/node()}" ItemTemplate="{StaticResource h1}"  >

  </TreeView>

  </Grid>

</Page>