On Dec 19, 2007, at 1:44 PM, Bill Anderson wrote:
> Ed -- OO question -- when should a control know about a sibling
> control? I'm
> trying to think of a case where that would be true and I can't come
> up with
> one...
Let's say you're creating a reusable component that is designed to
drop on several forms. Since you can't assume anything about the
form, your controls will communicate via self.Parent (i.e., the
container in which they reside). But sometimes it's just simpler to
work directly; imagine a check box that controls whether a text box
is enabled or not. The code could be:
def onHit(self, evt):
self.Parent.txtPhone.Enabled = self.Value
Sure, you can be purist and communicate via the container, but
there's something to be said for simplicity sometimes.
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
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