单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a FormView control to access the results of a query. The query contains the following fields：  &iexcl；¤EmployeeI  &iexcl；¤FirstNam  &iexcl；¤LastNam  The user must be able to view and update the FirstName field.  You need to define the control definition for the FirstName field in the FormView control. Which code fragment should you use？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a file named movies.xml that contains the following code fragment. You add a Web form to the application.  You write the following code segment in the Web form. （Line numbers are included for reference only.） You need to implement the XmlDataSource control to display the XML data in a TreeView control. Which code segment should you insert at line 06？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a file named movies.xml that contains the following code fragment.  <Movies>  <Movie ID="1" Name="Movie1" Year="2006">  <Desc Value="Movie desc"/> </Movie>  <Movie ID="2" Name="Movie2" Year="2007">  <Desc Value="Movie desc"/> </Movie>  <Movie ID="3" Name="Movie3" Year="2008">  <Desc Value="Movie desc"/> </Movie>  </Movies>  You add a Web form to the application.  You write the following code segment in the Web form. （Line numbers are included for reference only.）  01 <form runat="server">  02 <asp：xmldatasource  03 id="XmlDataSource1" 04 runat="server"  05 datafile="movies.xml" />  06  07 </form>  You need to implement the XmlDataSource control to display the XML data in a TreeView control. Which code segment should you insert at line 06？（）