为什么日期验证老是报错？

Question

我用CompareValidate空间进行输入日期格式验证： <tr>
                    <td style="width: 100px">
                        <asp:Label ID="label3" runat="server" Text="出生年月" Font-Size="Smaller" Width="146px"></asp:Label></td>
                    <td style="width: 100px">
                        <asp:TextBox ID="textbox2" runat="server"></asp:TextBox></td>
                    <td style="width: 100px">
                        <asp:CompareValidator ID="CV1" runat="server" ControlToValidate="textbox2" Type="Date"
                            ErrorMessage="请输入正确日期"  Font-Size="Smaller"></asp:CompareValidator></td>
                </tr>
一直报：CV1”的“ValueToCompare”属性的值“”无法转换为类型“Date”。  what's up?

Answer 1

CompareValidator....应该是范围验证控件