Hi,<BR><BR>How would I duplicate/add the "onsubmit" functionality to an ASP.Net form to offer client-side validation?<BR><BR><script language="javascript"><BR><!--<BR>function processForm()<BR>{<BR>/* Perform additional validation on ALL form controls.<BR>All controls must return true to pass validation. */<BR>}<BR>//--><BR></script><BR><BR><form id="myForm" method="post" onsubmit="return processForm();" runat="server"><BR>'Web Controls<BR></form><BR><BR>I'd still like to be able to use .NET validation as well. I know there is a CustomValidator control, but could this work to test validation for all web controls that belong to the form? Is there a better approach?<BR><BR>Thanks,<BR>D.<BR>Use the CustomValidator. It's really the way to go. Check the help files.