>
Hey Toby,
I'm not sure I understand the exact nature of what you are doing, but I can
describe my own dealings with a similar problem.
What I've got is a class, that has several controls associated with it.
This class needs to be created dynamically and needs to hold it's own
references to the controls. I didn't want a whole bunch of control arrays
in the window, I wanted only one array of my class which hold all the other
references.
In the window I created an invisible version of all the controls I wanted
to create dynamically. (Since you cant create them without a template
version somewhere)
It was not possible for me to create a new control except inside of the
window that held them. Referencing the window as you do below c = new
window1.canvas did not work at all.
So what I did was add a method to the window with my class as it's
parameter, then in that method I used that reference to create a new
control and store it's reference back in my class. Kind of round about I
know:) my class had several references like:
myListbox as ListboxInWindow1
myCanvas as CanvasInWindow1
etc..
then in window1 create a method like:
sub CreateControl( c as myClass)
c.myListbox = new ListboxInWindow1
c.myCanvas = new CanvasInWindow1
end sub
and call it from my class like:
window1.CreateControl self
this worked for me. Give it a try.
-James
>I have what might be a bug, but I want to run it by the list members to
>make sure I am not doing something wrong.
>
>The goal I have in mind is to create a control subclass which can
>instantiate new controls on the fly. Here's the play-by-play:
>
>Create a new project. In this project, create a new class and make it a
>subclass of the ListBox control. Name it "TestListBox". Create another
>new class, and make it a subclass of Canvas. Name it "TestCanvas".
>
>Drag a ListBox to the window and change its super to TestListBox. Drag a
>Canvas to the window and change its super to TestCanvas.
>
>Open the TestListBox class (not the control, but the class in the
>properties window). Type the following code into the Open Event:
>
>dim c as TestListBox
>c=new window1.canvas1
>
>When running this project, I either get a stackOverflowException or
>(more often) the machine locks up. Aren't I mean, telling you this after
>you run the program? :)
>
>Anyway, I admittedly am still learning the whole control instantiation
>process, but if I can get this to work I think it would be very
>powerful. Am I doing something wrong, or is this a bug/limitation in
>REALbasic? If it is the former, what can I do to make this work? If it
>is the latter, can this be fixed, or is there a workaround?
>
>Thanks!
>
>--
>***************************************************
>Toby W. Rush - trush at unoco dot edu
><A
>HREF="http://macinsearch.com/users/tobyrush/software.html";>http://macinsearch.com/users/tobyrush/software.html</A>
>"Quondo omni flunkus, mortati."
>***************************************************
>
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