Do you mean that while you are in insert state you call the Delete method?

Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com

----- Original Message -----
From: <mkl20uk@...>
To: <IBObjects@yahoogroups.com>
Sent: Wednesday, September 19, 2001 7:11 AM
Subject: [IBO] DML Caching


> I am not sure whether this is a bug or I am misunderstanding
> something and trying to do something stupid.
>
> A dataset has two primary keys (both Int64). Adding records to the
> dataset via a grid works fine. A Delete button looks at the current
> record in the grid and if the dataset is in insert mode it performs a
> cancel and if not a delete. This all works fine.
>
> If I enable DML caching and set the dataset to announce all inserts,
> edits and deletes, then when I delete a record from the grid, after
> it has been posted - so the dataset is not in dssInsert mode - and
> the DML caching will have been invoked - performing the delete causes
> an "Invalid reference for delete" error message. I can reproduce
> this with other datasets at will so I don't think it is anything
> specific to the dataset.
>
> This is using Delphi 6 and IBO4.2Ea