Thank you. Got the same reply on another newsgroup and I got it working now.

>You could use the linkbutton control instead that supports an action event.
>With the hyperlink control you could add a querystring parameter to the NavigateURL property which would id which one was selected.
>
>
>>Hi all,
>>
>>Given that there are two hyperlinks pointing to the same page. I want to know which hyperlink was clicked to get to the page so I can conditionally add/remove a RequiredFieldValidator control on the target page.
>>
>>TIA.