<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnSelectedIndexChanged="GridView1_SelectedIndexChanged">
            <Columns>
                <asp:TemplateField>
                  <AlternatingItemTemplate>
                   <asp:GridView ID="GridView2"AutoGenerateColumns="false"runat="server">  
                   </asp:GridView>
                   </AlternatingItemTemplate>
                </asp:TemplateField>
            </Columns>
</asp:GridView>
我想获取GridView2,用代码怎么写????