How to prevent the RequireFieldValidator in a Form affecting other Controls on same page

Dear All,

I have a RequireFieldValidator in a TextBox on a Webpage as below:

<asp:RequiredFieldValidator ID="ValidationID1" runat="Server" ControlToValidate="txtName" Text="*">
</asp:RequiredFieldValidator>

This validator in a "Form" page is affecting another control like selecting a row in a GridView. Both the Form and the GridView are separated, but on the same page.

How to keep the RequiredFiedValidator in the "Form" and not affecting the "GridView" controls?

Many Thanks