单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You write the following code fragment.  You need to ensure that when you click the Button1 control, a selected list of items move from the ListBox1 control to the ListBox2 control.  Which code segment 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 add an XmlDataSource control named XmlDataSource1 to the Web page. XmlDataSource1 is bound to an XML document with the following structure.  You also write the following code segment in the code-behind file of the Web page.  You need to add a BulletedList control named BulletedList1 to the Web page that is bound to XmlDataSource1.  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 add an XmlDataSource control named XmlDataSource1 to the Web page. XmlDataSource1 is bound to an XML document with the following structure.  You also write the following code segment in the code-behind file of the Web page.  You need to add a BulletedList control named BulletedList1 to the Web page that is bound to XmlDataSource1.  Which code fragment should you use?（）