--- In IBObjects@yahoogroups.com, Helen Borrie <helebor@...> wrote:

>
> At 10:52 PM 13/03/2006, you wrote:
>
> >I get this error when running the code listed below (I log in with
> >SYSDBA & masterkey):
> >
> >'Access violation at address 004A977C in module 'TestProj2.exe'. Read
> >of address 00000054'. Process TestProj2.exe (2424)
> >
> >procedure TDataModule3.DataModuleCreate(Sender: TObject);
> >begin
> >if not ib_connection1.Connected then
> > ib_connection1.Connect;
> > with ib_query1 do
> > begin
> > if not ib_transaction.started then
> > ib_transaction.StartTransaction;
> > Open;
> > end;
> >end;
>
> You've got an unreferenced object there somewhere...
> Do you actually have objects named ib_connection1 and ib_query1? If
> you do, are the ib_connection and ib_transaction properties of
> ib_query1 actually set to anything?
>
> Helen
>

Yes I have objects named ib_connection1 and ib_query1 and they work OK
at design time. (I have the simplest setup for testing, 1 form, 1
grid, 1 datamodule).

The properties of ib_query1 are:
ib_connection = ib_connection1
ib_transaction = <default>