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Article #558Re: Null database field testing in Delphi 2005
From: Johannes Bjerregaard
Date: Wed, 05 Jan 2005 17:19
Date: Wed, 05 Jan 2005 17:19
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Ted Hale wrote: > In Delphi 5 I would test for a Null value in a database field using: > > if (dataSet['dataField'] = Null) then > do something; > > This worked fine. In Delphi 2005 the compiler reports 'Null' is an > undeclared identifier. Can anyone tell me what replaces this in > 2005? Thanks for any help. > > Ted Add Variants to the uses clause of the units where you use Null.
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X-Google-Thread: 1effe6,e4118755d1134eb5 X-Google-Attributes: gid1effe6,public X-Google-Language: ENGLISH,ASCII-7-bit From: "Johannes Bjerregaard" <jozzb@hotmail> Subject: Re: Null database field testing in Delphi 2005 Newsgroups: borland.public.delphi.database.dotnet References: <41db6026$1@newsgroups.borland.com> User-Agent: XanaNews/1.17.1.2 NNTP-Posting-Host: 66.140.110.1 Message-ID: <41dc21a6$1@newsgroups.borland.com> Date: 5 Jan 2005 09:19:34 -0800 X-Trace: newsgroups.borland.com 1104945574 66.140.110.1 (5 Jan 2005 09:19:34 -0800) Lines: 14 Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!newsgate.cistron.nl!feeder1.cambrium.nl!feeder2.cambrium.nl!feed.tweaknews.nl!216.196.110.149.MISMATCH!border2.nntp.ams.giganews.com!nntp.giganews.com!pe2.news.blueyonder.co.uk!blueyonder!news-peer-test!btnet!newsfeed.bt.es!caladan.landsraad.net!newsgroups.borland.com!not-for-mail