On Mar 3, 2006, at 7:45 AM, Ian R wrote:
Ok, pardon me, but I'm stuck again, and I'm having a hard time
finding answers because I don't know really what I'm looking for.
I just can't get it abstract enough!
When I had the same code in many windows, I could loop through all
the controls in the window (i as integer) and do this:
if control(i) isA EditField then EditField1(control(i).Index).Load
if control(i) isA ListBox then ListBox1(control(i).Index).Load
if control(i) isA MoviePlayer then MoviePlayer1(control(i).Index).Load
but now that I've moved that shared code into a superclass of those
Windows, I'm having a hard time communicating with the controls in
the subclasses. The only solutions I've found involve referring
directly to the subclassed Windows (table1Window, etc, in the above
message) but I think that would defeat the purpose of having the
abstract superclass...any help?
First, you can replace the above series of if statements with putting
a suitable class interface on all the controls, and doing
control(i).Load
or only putting a class interface on the controls where you need it,
and doing (assuming the Clas Interface is called Loader):
if control(i) IsA Loader
control(i).Load
End If
The rest of your question, I don't follow. You can certainly do the
above in the superclass. If there is something more specific you need
to do in the subclasses, you would invoke an Event at the point where
you need to do it.
Guyren G Howe
guyren-at-relevantlogic.com
http://relevantlogic.com
REALbasic, PHP, Python programming
PostgreSQL, MySQL database design and consulting
Technical writing and training
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives of this list here:
<http://support.realsoftware.com/listarchives/lists.html>
