Ed Leafe wrote:
On Sep 22, 2005, at 10:06 PM, Paul McNett wrote:
I have a dForm with, among other things, a couple buttons with
captions "Sign In" and "Sign Out". The onHit() handlers call
self.getBizobj().signIn() and self.getBizobj().signOut(), because
there's logic there that really belongs at the business logic level
rather than the ui level.
The problem here is that the buttons are talking to something other
than the form. They should follow the Chain of Responsibility pattern
and call methods of the Form. The bizobj's signIn() and signOut()
methods should return result values that the form can then use to raise
whatever events need to be raised.
No, the buttons are talking to the form's onHit_cmdSignIn() and
onHit_cmdSignOut() methods. The bizobj's methods do return result
values, and I can indeed raise the event from there. But my thinking is
that this isn't something I want to code everywhere I need it, I just
want it to happen automatically. If the rownum changes in the bizobj,
whenever and for whatever reason, and I have controls that are bound to
that bizobj, I want the current values of those controls to reflect the
current values of the bizobj.
--
Paul McNett
http://paulmcnett.com
http://dabodev.com
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