Subject Re: [IBO] Detecting StartTransaction
Author Luiz
To check for physical transaction I have used "Started".

Luiz.

----- Original Message -----
From: "bhatakeyama" <bhatasub5@...>
To: <ibobjects@yahoogroups.com>
Sent: Sunday, April 28, 2002 6:26 PM
Subject: Re: [IBO] Detecting StartTransaction


> "Helen Borrie (TeamIBO)" wrote:
>
> > At 07:08 PM 27-04-02 -0700, bhata wrote:
> > >Daniel Rail wrote:
> > >
> > > > At 04/27/2002 04:23 PM, you wrote:
> > > > >Is there a way to detect a StartTransaction for a TIB_Database?
> > > >
> > > > Look at TIB_Transaction.AfterStart event.
> > >
> > >That's what I thought. But when I put a breakpoint on it, it
> > >only broke at the beginning of the program and InTransaction
> > >is still false. I execute a StartTransaction from a TButton and
> > >it doesn't break. Can you verify?
> >
> > You can't intervene in the StartTransaction method. Don't test
> > InTransaction, since this relates to the logical transaction but does
not
> > necessarily indicate whether the transaction is active. You should be
> > testing the TransactionIsActive property to determine whether a physical
> > transaction has started.
>
> Hi Helen,
>
> I wrote a test program where I can reopen the TIB_Database and
> TIB_Query. This results with both InTransaction and TransactionIsActive
> being false.
>
> If I execute a StartTransaction() it results in:
> InTransaction == true
> TransactionIsActive == false
> Restarting, when I edit a field in a TIB_Grid it results in:
> InTransaction == false
> TransactionIsActive == true
> Restarting, if I execute a StartTransaction() followed by a TIB_Grid edit
it results in:
> InTransaction == true
> TransactionIsActive == true
>
> I'm confused with the terminology in the help file. For
> TransactionIsActive it says "This property works for both the
> implicit and explicit logical transaction modes." Doesn't "explicit"
> mean executing StartTransaction?
>
>
> Basically I would like to trap the situation where
> InTransaction == false
> TransactionIsActive == true
> Because I am trying to always do an "Explicit" transaction, I want
> to know if I inadvertently allow an "Implcit" transaction. Is there
> a way to trap this situation?
>
> Thanks.
>
> bhata