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XmlDataSource and XPath

<%@ Page Language="C#" AutoEventWireup="false" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">     <title>Untitled Page</title> </head> <body>     <form id="form1" runat="server">     <div>         <asp:XmlDataSource ID="sourceDVD"                             runat="server"                             DataFile="~/Data.xml"                             XPath="/DvdList/DVD/Starring/Star"/>            <asp:GridView ID="GridView1"                           runat="server"                           DataSourceID="sourceDVD"                           AutoGenerateColumns="False">               <Columns>                 <asp:TemplateField HeaderText="DVD">                   <ItemTemplate>                     <%# XPath(".")%><br />                   </ItemTemplate>                 </asp:TemplateField>               </Columns>         </asp:GridView>     </div>     </form> </body> </html> File: Data.xml <?xml version="1.0"?> <DvdList>    <DVD ID="1" Category="Category 1">       <Title>title 1</Title>       <Director>directory 2</Director>       <Price>1</Price>       <Starring>          <Star>star 1</Star>          <Star>star 2</Star>       </Starring>    </DVD>    <DVD ID="2" Category="Category 2">       <Title>title 2</Title>       <Director>directory 2</Director>       <Price>2</Price>       <Starring>          <Star>star 3</Star>          <Star>star 4</Star>       </Starring>    </DVD> </DvdList>