ValidationGroup property in Wizard control

Hi All,

I need to validate two text boxes in my wizard control. Here is the
code:

<StepNavigationTemplate>
<asp:Button ID="StepPreviousButton" runat="server" BackColor="White"
BorderColor="#C5BBAF" BorderStyle="Solid" BorderWidth="1px"
CausesValidation="False" CommandName="MovePrevious"
Font-Names="Verdana" Font-Size="0.8em" ForeColor="#1C5E55"
Text="Previous" />
<asp:Button ID="StepNextButton" runat="server" BackColor="White"
BorderColor="#C5BBAF" BorderStyle="Solid" BorderWidth="1px"
CommandName="MoveNext" Font-Names="Verdana" ValidationGroup="Grp1"
Font-Size="0.8em" ForeColor="#1C5E55" Text="Next" />
</StepNavigationTemplate>

____________________________________

<asp:WizardStep runat="server" Title="Description">

Web Service Name: <asp:TextBox ID="tbServiceName" runat="server"
MaxLength="255" ></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="tbServiceName" ErrorMessage="*"
ValidationGroup="Grp1"> </asp:RequiredFieldValidator>
<br />
Description: <asp:TextBox ID="tbWSDesc" runat="server" Height="16px"
Width="340px" MaxLength="255" ></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server"
ControlToValidate="tbWSDesc" ErrorMessage="*" ValidationGroup="Grp1">
</asp:RequiredFieldValidator>

But when I click the next button (with empty text boxes), It goes to
the next step in my wizard control.

Any idea how to keep the active step index to the same step in case the
validation fails?

Any help would be appreciated.
Thanks.

~VD

.