Article View: borland.public.cppbuilder.database.ado
Article #2127Re: ADO & DBASE FILES
From: Fausto Sanchez
Date: Sun, 09 Nov 2003 23:53
Date: Sun, 09 Nov 2003 23:53
41 lines
2487 bytes
2487 bytes
This ended up being a very simple problem of not populating the object tree with the fields. What I find abit puzzling is that the Grid would display data in the form before compiling. I would think it should error out to the effect that no fields work included. All better now. Thanks "Palmetzhofer Dietmar" <dietmar.palmetzhofer@boku.ac.at> wrote in message news:3fab5420@newsgroups.borland.com... > Where do you get the error? Could you post some piece of code? You write > that a exception is raised, so It happens during runtime, I assume. > Normally this error is raised when you try to post a record that has > NULL-values. > But Iļæ½d need more information to give more hints. > Greetings, > Didi > "Fausto Sanchez" <fausto@performancepost.com> schrieb im Newsbeitrag > news:3fa82fc6$1@newsgroups.borland.com... > > I am tring to use the ADO components to connect to a DSN of Dbase 3 files. > I > > am using WinXP and BCB6 pro. > > When I drop the ADO table, Database connection, and a simple DBgrid I make > > the ADO table active and I can see the grid with data populated. When I > > compile I get the following error > > > > Debugger Exception Notification > > --------------------------- > > Project Project1.exe raised exception class EVariantTypeCastError with > > message 'Could not convert variant of type (Null) into type (String)'. > > Process stopped. > > > > I am sure this is a very simple problem but I have not been able to figure > > it out. I appreciate any help. > > -- > > Fausto > > > > > >
Technical Details
Message-ID:
<3faed347$1@newsgroups.borland.com>Path:
arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mailReferences:
<3fa82fc6$1@newsgroups.borland.com> <3fab5420@newsgroups.borland.com>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII X-Google-Thread: 10698b,dcb5b9cb815e806e X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2003-11-09 16:09:15 PST From: "Fausto Sanchez" <fausto@performancepost.com> Newsgroups: borland.public.cppbuilder.database.ado References: <3fa82fc6$1@newsgroups.borland.com> <3fab5420@newsgroups.borland.com> Subject: Re: ADO & DBASE FILES Date: Sun, 9 Nov 2003 15:53:10 -0800 Lines: 43 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 NNTP-Posting-Host: 63.193.88.66 Message-ID: <3faed347$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1068421959 63.193.88.66 (9 Nov 2003 15:52:39 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail