converter_mc = target.createEmptyMovieClip ("converter", depth);
converter_mc._x = x;
converter_mc._y = y;
converter_mc.createClassObject(mx.controls.ComboBox, "picker", converter_mc.getNextHighestDepth());
It does not seem to work. Nothing gets created. No errors mind you.
Actually, it's my bad -- the code is fine -- it was the way I was importing the controls in my fla file that was the problem. This is fixed and things are working as expected. Sorry about this.
p.s. if you're still able, please mark this thread as answered.