>Naomi,
>
>Just make your class smart enough to resize its internals at Init() time. Drop the container onto the form, set the container size to fit your form surface and let the container figure out how to juggle it's contents around when it first constructs at runtime. It doesn't really matter at design time that your listboxes and buttons don't "look right".
>

Yes, I understand that, but I hoped for some smart control to be able to even look right in design-time.

I'll program the run-time resize (or may be I would not even need to program much - setting anchors may be enough).