Xaml下ListView的分组显示效果

< StackPanel  xmlns ='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
             xmlns:x ='http://schemas.microsoft.com/winfx/2006/xaml'
             xmlns:d ='clr-namespace:System.Windows.Data;assembly=PresentationFramework'>
   <StackPanel.Resources >
     < XmlDataProvider  x:Key ="MyData"  XPath ="/Info" >
       < x:XData >
         < Info  xmlns ="" >
           < Item  ID ="ISBN 45-F1"  Name ="Winner"  Price ="$32.05"  Author ="Aka"  Catalog ="Business" />
           < Item  ID ="ISBN 54-32"  Name ="C++ Inside"  Price ="$10.00"  Author ="John"  Catalog ="Language" />
           < Item  ID ="ISBN 14-A0"  Name ="Java Inside"  Price ="$9.00"  Author ="Tom"  Catalog ="Language" />
           < Item  ID ="ISBN 56-78"  Name ="Stock Market"  Price ="$8.50"  Author ="Bob"  Catalog ="Business" />
           < Item  ID ="ISBN AA-02"  Name ="Guideline for Health"  Price ="$19.00"  Author ="Lee"  Catalog ="Health" />
           < Item  ID ="ISBN A4-07"  Name ="C# Inside"  Price ="$8.50"  Author ="Bob"  Catalog ="Language" />
         </ Info >
       </ x:XData >
     </ XmlDataProvider >
     < CollectionViewSource  x:Key ='src'  Source ="{Binding Source={StaticResource MyData}, XPath=Item}" >
       < CollectionViewSource .GroupDescriptions >
         < d:PropertyGroupDescription  PropertyName ="@Catalog"   />
       </ CollectionViewSource.GroupDescriptions >
     </ CollectionViewSource >
   </ StackPanel.Resources >

   < ListView  ItemsSource ='{Binding  Source ={StaticResource  src}}' BorderThickness ="0" >
     < ListView .GroupStyle >
       < GroupStyle >
         < GroupStyle .ContainerStyle >
           < Style  TargetType ="{x:Type GroupItem}" >
             < Setter  Property ="Margin"  Value ="0,0,0,5" />
             < Setter  Property ="Template" >
               < Setter .Value >
                 < ControlTemplate  TargetType ="{x:Type GroupItem}" >
                   < Expander  IsExpanded ="True"  BorderBrush ="#FFA4B97F"  BorderThickness ="0,0,0,1" >
                     < Expander .Header >
                       < DockPanel >
                         < TextBlock  FontWeight ="Bold"  Text ="{Binding Path=Name}"  Margin ="5,0,0,0"  Width ="100" />
                         < TextBlock  FontWeight ="Bold"  Text ="{Binding Path=ItemCount}" />
                       </ DockPanel >
                     </ Expander.Header >
                     < Expander .Content >
                       < ItemsPresenter  />
                     </ Expander.Content >
                   </ Expander >
                 </ ControlTemplate >
               </ Setter.Value >
             </ Setter >
           </ Style >
         </ GroupStyle.ContainerStyle >
       </ GroupStyle >
     </ ListView.GroupStyle >
     < ListView .View >
       < GridView >
         < GridViewColumn  Header ="ID"  DisplayMemberBinding ="{Binding XPath=@ID}"  Width ="100"   />
         < GridViewColumn  Header ="Name"  DisplayMemberBinding ="{Binding XPath=@Name}"  Width ="140"   />
         < GridViewColumn  Header ="Price"  DisplayMemberBinding ="{Binding XPath=@Price}"  Width ="80"   />
         < GridViewColumn  Header ="Author"  DisplayMemberBinding ="{Binding XPath=@Author}"  Width ="80"   />
       </ GridView >
     </ ListView.View >
   </ ListView >
</ StackPanel >