Article View: borland.public.cppbuilder.database.ado
Article #2853Re: how can I know the dataset in ADOQuery has been changed?
From: Viatcheslav V. Vassiliev
Date: Tue, 11 Mar 2003 16:53
Date: Tue, 11 Mar 2003 16:53
74 lines
3464 bytes
3464 bytes
Requery re-executes command and fetches all rows again. So bookmarks become
invalid. You may try primary key, save its value before requery and locate
it after.
----------------------------------------------------------------
Regards,
Viatcheslav V. Vassiliev
http://www.oledbdirect.com
The fastest way to access MS SQL Server, MS Jet (MS Access)
and Interbase (through OLEDB) databases.
"Jonny" <jonny@nospam.jonnywilk.co.uk> �������/�������� � ��������
���������: news:3e6dac14$1@newsgroups.borland.com...
> I too had this problem
>
> I overcame it by using the requery() method on the ADOTable - however,
this
> would loose my place in the database so i used a bookmark to save it.. The
> code looked a little bit like this:
>
> void TForm1::DB_Refresh()
> {
> TBookmark SavePlace;
> TExecuteOptions myOptions;
> myOptions << eoAsyncFetch ;
>
> // get a bookmark so that we can return to the same record
> SavePlace = ADOTable1->GetBookmark();
> // Re run the query
> ADOTable1->Requery(myOptions);
> // Now return to where we were before
> ADOTable1->GotoBookmark(SavePlace);
> ADOTable1->FreeBookmark(SavePlace);
> }
>
>
>
> Jonathan
>
>
> "Viatcheslav V. Vassiliev" <support@oledbdirect.com> wrote in message
> news:3e684296@newsgroups.borland.com...
> > You can do this on client-side cursor with LockType = ltBatchOptimistic.
> In
> > this mode ADO caches data, updates, inserts, deletes etc. Look help for
> > FilterGroup property.
> >
> > ----------------------------------------------------------------
> > Regards,
> > Viatcheslav V. Vassiliev
> > http://www.oledbdirect.com
> > The fastest way to access MS SQL Server, MS Jet (MS Access)
> > and Interbase (through OLEDB) databases.
> >
> > "NEO" <glin@gri-china.com> �������/�������� � �������� ���������:
> > news:3e683f38@newsgroups.borland.com...
> > > for example , any changes made in MS Office Word is going to be
recorded
> ,
> > > and promots you before you exit without save.
> > >
> > > Does ADOQuery have any property or method to do the same thing?
> > >
> > > this matter has put me in the jam so long time.
> > >
> > > Thanks
> > > neo
> > >
> > >
> >
> >
>
>
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 10698b,99977fdb00087541 X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2003-03-11 09:02:54 PST From: "Viatcheslav V. Vassiliev" <support@oledbdirect.com> Newsgroups: borland.public.cppbuilder.database.ado References: <3e683f38@newsgroups.borland.com> <3e684296@newsgroups.borland.com> <3e6dac14$1@newsgroups.borland.com> Subject: Re: how can I know the dataset in ADOQuery has been changed? Date: Tue, 11 Mar 2003 19:53:00 +0300 Lines: 76 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 213.247.201.57 Message-ID: <3e6e15fa$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1047401978 213.247.201.57 (11 Mar 2003 08:59:38 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-06!sn-xit-08!supernews.com!64.152.100.70.MISMATCH!sjc70.webusenet.com!c03.atl99!news.webusenet.com!news02.tsnz.net!newsfeed01.tsnz.net!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail