----- Original Message -----
From: "Geoff Worboys (TeamIBO)" <geoff@...>
To: "Luiz" <IBObjects@yahoogroups.com>
Sent: Friday, February 08, 2002 9:32 PM
Subject: Re: [IBO] Refreshing a IBODataset


> Hi Luiz,
>
> Thanks for the explanation.
>
> I did notice in an earlier post that you are attempting to write your
> own Refresh method. Do you realise that there is already a Refresh
> method in TDataset (and it is not virtual - at least in Delphi5)?
> So at the very least the code you suggested should be resulting in a
> warning.
>
> I did notice that the code executed by the standard TDataset Refresh
> method is the same code (after InvalidateSQL) executed when changing
> indexes (without the before/after refresh events). It is also the
> same (or very similar) code to that used elsewhere. So if the standard
> Refresh does not work then I suspect that there are other more deep
> seated problems.
>
> One thing that may be worth experimenting with is TDBGrid. Try
> removing the DataSource from TDBGrid before you do the InvalidateSQL,
> Refresh and then reassign after. This is not intended as a permanent
> fix, just wanting to find out if the timing may be related to how
> TDBGrid is interacting with TDataset. If this resolves the problem we
> may have to work out how to get the appropriate notifications through
> to TDBGrid when an internal refresh (or equivalent code elsewhere in
> IBODataset) is performed.

I did what you suggested but there is no difference. The problem continues.

Luiz.