ASP.NET2.0下含有DropDownList的GridView编辑、删除的完整例子！

ASP.NET2.0下含有DropDownList的GridView编辑、删除的完整例子！(2)                             <asp:TemplateField HeaderText="学历代码" SortEXPression="DB1_1">
                                <EditItemTemplate>
                                    <%--<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("DB1_1") %>'></asp:TextBox>--%>
                               <asp:DropDownList ID ="ddlXL" runat="server"  DataValueField='<%# Bind("DB1_1") %>'></asp:DropDownList>
                                </EditItemTemplate>
                                <ItemTemplate>
                                    <asp:Label ID="Label1" runat="server" Text='<%# Bind("xueliText") %>'></asp:Label>
                                </ItemTemplate>