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<td>
<asp:TextBox ValidationGroup ="insert" ID="NumTextBox" runat="server" Text='<%# Bind("Num") %>' />
<asp:RequiredFieldValidator ValidationGroup ="insert" ID="RequiredFieldValidator1"
runat="server" ErrorMessage="*必填" ControlToValidate="NumTextBox"></asp:RequiredFieldValidator>
<asp:CompareValidator ValidationGroup ="insert" ID="CompareValidator1"
runat="server" ErrorMessage="序号必须为数字" ControlToValidate="NumTextBox" Operator="DataTypeCheck" Type="Integer"></asp:CompareValidator>
</td>