XmlDataProvider的简单应用

1.Xml文档：



代码

   
     

    
      
    
      1 
    
      <?
    
      xml version="1.0" encoding="utf-8" 
    
      ?>
    
      

    
      2 
    
       
    
      <
    
      Root
    
      >
    
      

    
      3 
    
       
    
      <
    
      Item 
    
      ID
    
      ="1"
    
       Data
    
      ="意大利风格"
    
      />
    
      

    
      4 
    
       
    
      <
    
      Item 
    
      ID
    
      ="2"
    
       Data
    
      ="挪威风格"
    
      />
    
      

    
      5 
    
       
    
      <
    
      Item 
    
      ID
    
      ="3"
    
       Data
    
      ="美国风格"
    
      />
    
      

    
      6 
    
       
    
      <
    
      Item 
    
      ID
    
      ="4"
    
       Data
    
      ="非洲风格"
    
      >
    
      

    
      7 
    
       
    
      <
    
      SubItem 
    
      ID
    
      ="41"
    
       Data
    
      ="埃及风格"
    
      ></
    
      SubItem
    
      >
    
      

    
      8 
    
       
    
      </
    
      Item
    
      >
    
      

    
      9 
    
       
    
      </
    
      Root
    
      >
   
     

 

2.Xaml

 

代码

   
     

    
      
    
      <
    
      Window 
    
      x:Class
    
      ="SdkXamlBrowser.Window1"
    
      
 xmlns
    
      ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    
      
 xmlns:x
    
      ="http://schemas.microsoft.com/winfx/2006/xaml"
    
      
 Title
    
      ="Window1"
    
       Height
    
      ="358"
    
       Width
    
      ="709"
    
      >
    
      
 
    
      <
    
      Window.Resources
    
      >
    
      
 
    
      <
    
      XmlDataProvider 
    
      Source
    
      ="a.xml"
    
       x:Key
    
      ="aa"
    
       XPath
    
      ="/Root"
    
      />
    
      
 
    
      </
    
      Window.Resources
    
      >
    
      
 
    
      <
    
      Grid
    
      >
    
      
 
    
      <
    
      TextBlock 
    
      Text
    
      ="
    
      {Binding ElementName=lb,Path=SelectedValue}
    
      "
    
       
    
      />
    
      
 
    
      <
    
      StackPanel 
    
      Orientation
    
      ="Horizontal"
    
       Margin
    
      ="20,40,342,0"
    
      >
    
      
 
    
      <!--
    
       DisplayMemberPath="@Data" 必须加【@】 
    
      -->
    
      
 
    
      <!--
    
      筛选：ID==1 "="必须转义，改为"\="
    
      -->
    
      
 
    
      <
    
      ListBox 
    
      DataContext
    
      ="
    
      {Binding Source={StaticResource aa},XPath=/Root/Item[@ID\=1]}
    
      "
    
       Width
    
      ="100"
    
       Name
    
      ="lb"
    
      
 ItemsSource
    
      ="
    
      {Binding}
    
      "
    
       DisplayMemberPath
    
      ="@Data"
    
       SelectedValuePath
    
      ="@ID"
    
      >
    
      
 
    
      </
    
      ListBox
    
      >
    
      
 
    
      <
    
      ListBox 
    
      DataContext
    
      ="
    
      {Binding Source={StaticResource aa},XPath=/Root/Item[4]}
    
      "
    
       Name
    
      ="lb1"
    
       Width
    
      ="100"
    
       
 ItemsSource
    
      ="
    
      {Binding}
    
      "
    
       DisplayMemberPath
    
      ="@Data"
    
       SelectedValuePath
    
      ="@ID"
    
      >
    
      
 
    
      </
    
      ListBox
    
      >
    
      
 
    
      <!--
    
      筛选：ID大于2 ">"必须转义，改为"&gt;"
    
      -->
    
      
 
    
      <
    
      ListBox 
    
      DataContext
    
      ="
    
      {Binding Source={StaticResource aa},XPath=/Root/Item[@ID&gt;2]}
    
      "
    
       Name
    
      ="lb2"
    
       Width
    
      ="100"
    
       
 ItemsSource
    
      ="
    
      {Binding}
    
      "
    
       DisplayMemberPath
    
      ="@Data"
    
       SelectedValuePath
    
      ="@ID"
    
      >
    
      
 
    
      </
    
      ListBox
    
      >
    
      
 
    
      </
    
      StackPanel
    
      >
    
      
 
    
      </
    
      Grid
    
      >
    
      

    
      </
    
      Window
    
      >