🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: borland.public.cppbuilder.database.multi-tier
Article #560

About CloneCursor

#560
From: Mountain Lan
Date: Tue, 31 Jul 2001 14:36
19 lines
1637 bytes
Hello, everyone!
I am puzzled by a problem about ��CloneCursor�� method of 
TClientDataSet. I called this method to share the data between 
ClientDataSets, then deleted a record in the source data set, it 
seemed like that all records in the source data set were 
cleared. I inspected the properties of the source data set, and 
found that Eof and Bof were both true, while RecordCount was 
greater than zero. I used a grid to display the source data set. 
If I did nothing after deleting a record, there was no row in 
the grid; if I called First or Last, the records remained can be 
shown in the grid. My program was very simple:
TClientDataSet *ClonedDataSet = new TClientDataSet(NULL);
ClonedDataSet->CloneCursor(SourceDataSet, true, false);
delete ClonedDataSet;

Any comment from you is appreciated!

Mountain Lan
Technical Details
Message-ID: <3b66c27e$2_1@dnews>
Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!sn-xit-02!supernews.com!newsfeed.direct.ca!look.ca!news.maxwell.syr.edu!newsfeed.wirehub.nl!PeerFeed.KWeb.on.ca!dnews

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII
X-Google-Thread: fcd2b,797c75958664e17a,start
X-Google-Attributes: gidfcd2b,public
X-Google-ArrivalTime: 2001-07-31 07:40:32 PST
From: "Mountain Lan" <mountainlan@8848.net>
Sender: "Mountain Lan" <mountainlan@8848.net>
Reply-To: "Mountain Lan" <mountainlan@8848.net>
Subject: About CloneCursor
Newsgroups: borland.public.cppbuilder.database.multi-tier
X-User-Info: 61.130.27.42 61.130.27.42    
NNTP-Posting-Host: 207.105.83.65
Message-ID: <3b66c27e$2_1@dnews>
Date: 31 Jul 2001 07:36:46 -0700
X-Trace: dnews 996590206 207.105.83.65 (31 Jul 2001 07:36:46 -0700)
Lines: 21
Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!sn-xit-02!supernews.com!newsfeed.direct.ca!look.ca!news.maxwell.syr.edu!newsfeed.wirehub.nl!PeerFeed.KWeb.on.ca!dnews