求助，2003的源代码转换到2008出现问题

Question

重新生成时出现错误提示。“asp:ListItem”的“Text”属性不允许子对象。
出错代码：                                  <asp:DropDownList ID="Cbochrrebear" runat="server" CssClass="InputField" Width="160px">
                                        <asp:ListItem></asp:ListItem>
                                        <asp:ListItem Value="01">一孩残疾(01)</asp:ListItem>
                                        <asp:ListItem Value="02">残(烈)军人(02)</asp:ListItem>
                                        <asp:ListItem Value="03">丧偶再婚(03)</asp:ListItem>
                                        <asp:ListItem Value="04">离婚再婚(04)</asp:ListItem>
                                        <asp:ListItem Value="05">一方华(归)侨(05)</asp:ListItem>
                                        <asp:ListItem Value="06">代领后孕(06)</asp:ListItem>
                                        <asp:ListItem Value="07">两代或双独(07)</asp:ListItem>
                                        <asp:ListItem Value="08">井下作业(08)</asp:ListItem>
                                        <asp:ListItem Value="09">海洋捕捞(09)</asp:ListItem>
                                        <asp:ListItem Value="10">一方独子(10)</asp:ListItem>
                                        <asp:ListItem Value="11">一个生育(11)</asp:ListItem>
                                        <asp:ListItem Value="12">一女招婿(12)</asp:ListItem>
                                        <asp:ListItem Value="13">一子一女(13)</asp:ListItem>
                                        <asp:ListItem Value="14">沿海垦区(14)</asp:ListItem>
                                        <asp:ListItem Value="15">特殊(15)</asp:ListItem>
                                        <asp:ListItem Value="16">其他(16)</asp:ListItem>
                                    </asp:DropDownList>
      

Answer 1

<asp:DropDownList ID="Cbochrrebear" runat="server" CssClass="InputField" Width="160px">
<asp:ListItem Text="" Value="-1"></asp:ListItem>
...
</asp:DropDownList>