Help : TClientDataSet in 2-Tier

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2 total messages Started by david Tue, 21 Dec 1999 00:00

#1247

Author: david
Date: Tue, 21 Dec 1999 00:00

30 lines
1228 bytes

Hi ,


I am using TClientDataSets in place of cached updates but ...

I've got a almost 10 (sometimes even more) seconds delay between
the call of TClientDataSet.ApplyUpdates and the TProvider.BeforeUpdateRecord

what is going on between these two calls  ? is there a way to speed the
things up
or am I missing something here.

basically what I got is :

a read-only datagrid <--> datasource <--> ClientDataSet <--> TProvider <-->
TQuery.


The query is made against multiple tables. So in the
Provider.BeforeUpdateRecord
I perform updates against multiple tables.

everything works well but that delay is unacceptable.

I even tried to call directly TProvider.ApplyUpdates but there was no real
speed improvement.

Thanks ,

David

Re: Help : TClientDataSet in 2-Tier

#1258

Author: Harold Howe (TeamB)
Date: Fri, 31 Dec 1999 00:00

19 lines
1166 bytes

david wrote:
> 
> I am using TClientDataSets in place of cached updates but ...
> 
> I've got a almost 10 (sometimes even more) seconds delay between
> the call of TClientDataSet.ApplyUpdates and the TProvider.BeforeUpdateRecord
> 
> what is going on between these two calls  ? is there a way to speed the
> things up
> or am I missing something here.

David,

I have never seen these type of delays. You may want to repost over in
the midas group so Dan Miser can see your post. Don't let on that you
use C++ though, or he might skip your question.

Harold Howe [TeamB]
http://www.bcbdev.com

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