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Article #3256Re: TADODataSet->FieldCount==0
From: Vassiliev V.V.
Date: Thu, 07 Nov 2002 10:47
Date: Thu, 07 Nov 2002 10:47
54 lines
2890 bytes
2890 bytes
>I tried putting in a delay loop (with a Sleep() call in the middle) that waited for the field count to not be equal to 0, but it runs forever. Do you have Application->ProcessMessages() in loop? ---------------------------------------------------------------- Regards, Viatcheslav V. Vassiliev http://www.oledbdirect.com The fastest way to access MS SQL Server and MS Jet (MS Access) databases. "Mike Ruskai" <spamten.knilhtrae@begonedynnaht.net> ???????/???????? ? ???????? ?????????: news:gunaalqrneguyvaxarg.h56o2w1.pminews@207.105.83.65... > I'm attempting to make result counting optional in my program, so that the > initial results of a search are accessible to be examined while the query > completes in the background (by ADO, not on a separate thread of my app). > > The program already lets the user choose a server or client cursor, with a > cancel box with the latter so long searches can be aborted (even though ADO > will block on the Recordset->Cancel() call if the search involves a sorted > result set). > > After the search, I have a routine which goes through the result set and sets > field format information, as well as a few OnGetText handlers to display some > fields in human-readable format. > > With a server cursor, this routine works fine. With a client cursor, it does > nothing, because the reported field count is 0, and it has no fields to loop > through. > > I tried putting in a delay loop (with a Sleep() call in the middle) that > waited for the field count to not be equal to 0, but it runs forever. > > With a check of the RecordCount property, however, everything works with a > client cursor. > > So, what can I do to get a field count without checking the record count with > a client cursor? > > > -- > - Mike > > Remove 'spambegone.net' and reverse to send e-mail. > >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10698b,db15d9f63f3ea0ff X-Google-Attributes: gid10698b,public X-Google-ArrivalTime: 2002-11-07 03:22:06 PST From: "Vassiliev V.V." <news@vassilievvv.mtu-net.ru> Newsgroups: borland.public.cppbuilder.database.ado References: <gunaalqrneguyvaxarg.h56o2w1.pminews@207.105.83.65> Subject: Re: TADODataSet->FieldCount==0 Date: Thu, 7 Nov 2002 13:47:41 +0300 Lines: 56 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 NNTP-Posting-Host: 212.188.99.108 Message-ID: <3dca4aca@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1036667594 212.188.99.108 (7 Nov 2002 03:13:14 -0800) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-03!sn-xit-06!sn-xit-08!supernews.com!news.tele.dk!news.tele.dk!small.news.tele.dk!colt.net!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed1.cidera.com!Cidera!news.uni-x.net!newsgroups.borland.com!not-for-mail