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Help getting a Boolean response from an Eval operator

Posted By:      Posted Date: October 18, 2010    Points: 0   Category :ASP.Net

Hi all!

I would like to use an eval stmt to return a true/false for the visible property of a HyperLinkField.  IF clientComment exists, I  would like it to return True, if clientComment is null or "", then would like it to return False.

By default I noticed it already will not show the hyperlink if clientComment is Null, however the bug I'm running into is if the client enters a comment but then later deletes it so it's not null but blank, or "", in which case the HyperLinkField will incorrectly display.

Can someone please show me how to accomplish this?  Here's my attempt so far but I'm obviously hitting a wall:

Visible='<%# Eval("clientComment")==Null or =="",False) %>'

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