I let it happen and then capture the exception

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



__________ Information from ESET NOD32 Antivirus, version of virus signature database 3050 (20080423) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com
------------------------------------------------------------------------

_______________________________________________
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


__________ Information from ESET NOD32 Antivirus, version of virus signature 
database 3050 (20080423) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

_______________________________________________
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

Reply via email to