[AccessD] DependentObjects class

John W. Colby jwcolby at colbyconsulting.com
Thu Mar 11 06:14:01 CST 2004


Stuart,

Every one of my data aware control classes uses this class.

And the object is a simple clean method of preventing a class from
requerying a second time.

John W. Colby
www.ColbyConsulting.com

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Stuart
McLachlan
Sent: Thursday, March 11, 2004 12:40 AM
To: Access Developers discussion and problemsolving
Subject: Re: [AccessD] DependentObjects class


On 11 Mar 2004 at 0:11, John W. Colby wrote:

> I am working on a dependentobjects class, i.e. a class with a collection
> which holds objects (classes) where the control or form is dependent on
the
> current control.  Combo A changes.  Combo B uses Combo A to filter itself.
> Combo B is "dependent" on combo A and must be requeried whenever Combo A
> changes.
>
> This is a case where I programmed a solution working but it was ugly.  How
> would you solve this problem?
>

I doubt if I would do it with a class.

It's not *that* common a requirement and there are so many different
ways that you can end up with circular references,  CtlA - CtlB -
CtlC - CtlD...... CtlX - CtlC   etc  that trying to allow for them
would end up with such code bolat that the whole thing became
inefficient.








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