asp.net身份验证和授权

asp.net身份验证和授权(2) 16                    <TR>
17                        <TD>
18                            <asp:label id="Label1" runat="server">用户名称：</asp:label></TD>
19                        <TD>
20                            <asp:textbox id="tbName" runat="server" Width="183px"></asp:textbox></TD>
21                        <TD>
22                            <asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" ErrorMessage="用户名不能为空！" ControlToValidate="tbName"></asp:requiredfieldvalidator></TD>
23                    </TR>
24                    <TR>
25                        <TD>
26                            <asp:label id="Label2" runat="server">密码：</asp:label></TD>