The most basic way of doing this would be to do a bit of sql in your
BeforePost event and see if that field is already used. If you don't
know anything about the data underneath the TDataSet then this could be
a bit tricky.
Alister Christie
Computers for People
Ph: 04 471 1849 Fax: 04 471 1266
http://www.salespartner.co.nz
PO Box 13085
Johnsonville
Wellington
Simon Garton wrote:
Quick question : how do I validate uniqueness in a TDataset ? I have
some data aware controls and a TDBNavigator; I can check other
validation stuff in the BeforePost event, but is there a sensible way
of testing whether the field ‘name’ (which has a unique constraint in
the database) already exists ?
Many thanks,
Simon Garton
GIS/IT Consultant
email : [EMAIL PROTECTED]
mob : +64 21 227 4666
lat/long : 36º53'17" S, 174º46'50" E
www : http://www.simongarton.co.nz
http://www.treecapture.co.nz
------------------------------------------------------------------------
_______________________________________________
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe
_______________________________________________
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe
