Article View: comp.databases.ms-access
Article #232Re: newbie question II - Empty field in a form.
From: Jim Andersen
Date: Fri, 25 May 2001 14:16
Date: Fri, 25 May 2001 14:16
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2247 bytes
if len(me!field & "")=0 this way it checks for null and for zero-length string and you could put it in the fields OnExit. Jim "Fred Colman" <fred@reddelicious.com> skrev i en meddelelse news:ELpP6.31360$BN6.1675504@newsread1.prod.itd.earthlink.net... > You may want to try > if (isnull(Me!field) or Me!field="") then... > > You probably want to put this in the before update event. > > hth, > Fred > > "Henning Lang" <hlang@myrealbox.com> wrote in message > news:YbpP6.8$rB3.559@news010.worldonline.dk... > > As parts of a validation rule, I would like to test whether a field in a > > form is empty. I've tried with: > > > > a) if len(me!field ) then > > b) if isnull(me!field) > > > > but neither works. So my question is what have I done wrong and what is > the > > correct method. Also I would like on which event I should place the code. > It > > should be validated when the user tabs out of the field > > > > > > Henning Lang > > hlang@myrealbox.com > > > > > > > >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 11387c,d97964246c28cab4 X-Google-Attributes: gid11387c,public X-Google-Thread: ff0ac,d97964246c28cab4 X-Google-Attributes: gidff0ac,public X-Google-ArrivalTime: 2001-05-25 07:15:49 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!colt.net!news.tele.dk!212.242.40.196!news.cybercity.dk!not-for-mail From: "Jim Andersen" <jim@officeconsult.dk> Newsgroups: comp.databases.ms-access,dk.edb.database.ms-access Subject: Re: newbie question II - Empty field in a form. Date: Fri, 25 May 2001 16:16:59 +0200 Organization: OfficeConsult Lines: 42 Message-ID: <9elpeh$1nn4$1@news.cybercity.dk> References: <YbpP6.8$rB3.559@news010.worldonline.dk> <ELpP6.31360$BN6.1675504@newsread1.prod.itd.earthlink.net> NNTP-Posting-Host: port62.ds1-taa.adsl.cybercity.dk X-Trace: news.cybercity.dk 990800145 57060 212.242.61.193 (25 May 2001 14:15:45 GMT) X-Complaints-To: abuse@cybercity.dk NNTP-Posting-Date: Fri, 25 May 2001 14:15:45 +0000 (UTC) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2919.6700 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700