<Window x:Class="WpfDemo.HierarchicalDataTemplateDemo1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfDemo"
        mc:Ignorable="d"
        Title="HierarchicalDataTemplateDemo1" Height="300" Width="300">
    <Window.Resources>
        <XmlDataProvider x:Key="ds" XPath="Data/Grade">
            <x:XData>
                <Data xmlns="">
                    <Grade Name="一年级">
                        <Class Name="甲班">
                            <Group Name="A组"></Group>
                            <Group Name="B组"></Group>
                            <Group Name="C组"></Group>
                        </Class>
                        <Class Name="乙班">
                            <Group Name="A组"></Group>
                            <Group Name="B组"></Group>
                            <Group Name="C组"></Group>
                        </Class>
                    </Grade>
                    <Grade Name="二年级">
                        <Class Name="甲班">
                            <Group Name="A组"></Group>
                            <Group Name="B组"></Group>
                            <Group Name="C组"></Group>
                        </Class>
                        <Class Name="乙班">
                            <Group Name="A组"></Group>
                            <Group Name="B组"></Group>
                            <Group Name="C组"></Group>
                        </Class>
                    </Grade>
                </Data>
            </x:XData>
        </XmlDataProvider>
        <!--年级模板-->
        <HierarchicalDataTemplate DataType="Grade" ItemsSource="{Binding XPath=Class}">
            <TextBlock Text="{Binding XPath=@Name}"></TextBlock>
        </HierarchicalDataTemplate>
        <!--班级模板-->
        <HierarchicalDataTemplate DataType="Class" ItemsSource="{Binding XPath=Group}">
            <RadioButton Content="{Binding XPath=@Name}" GroupName="gn"></RadioButton>
        </HierarchicalDataTemplate>
        <!--小组模板-->
        <HierarchicalDataTemplate DataType="Group" >
            <CheckBox Content="{Binding XPath=@Name}"></CheckBox>
        </HierarchicalDataTemplate>
        
    </Window.Resources>
    <Grid>
        <TreeView ItemsSource="{Binding Source={StaticResource ds}}"></TreeView>
    </Grid>
</Window>