validation showing in both panels in asp.net - asp.net

Question

i am using two panels (login and registration) in asp.net where in both panels i used button control. and i also used validations for particular textboxes in both panels.
i want to show both panels at same time.
now what problem i am facing is that when i click on button of login panel, it shows validation error text in registration panel and vice-versa..
Is there nay other way to use any other control instead of button.
i am using visual studio-2008
i had created login panel as:
<asp:Panel ID="pnllogin" runat="server">
<table class = "style1">
<tr>
<td>
<asp:Label ID="lblloginid" runat="server" Text="Login_ID" Font-Bold="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtboxloginid" runat="server" ></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredfieldvalidator1" runat="server"
ControlToValidate="txtboxloginid" ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblpassword" runat="server" Text="Password" Font-Bold="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="txtboxpassword" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredfieldvalidator2" runat="server"
ControlToValidate="txtboxpassword" ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td></td>
<td>
<asp:HyperLink ID="hyperlinkforgotpassword" runat="server" ForeColor="Red" NavigateUrl="~/ForgotPassword.aspx">Forgot Password??</asp:HyperLink>
</td>
</tr>
<tr>
<td> </td>
<td>
<asp:ImageButton ID="imgbtnlogin" runat="server" ImageUrl="~/images/login.png"
onclick="imgbtnlogin_Click" />
</td>
</tr>
</table>
</asp:Panel>
and somewhat same code for registration panel..
can someone please help me..

Answer 1

Make use of ValidationGroup property to fire the validation message related to proper panel
here is detail info : http://www.w3schools.com/ASPNET/prop_webcontrol_imagebutton_validationgroup.asp
demo : http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_prop_webcontrol_imagebutton_validationgroup
Specifying Validation Groups