In order to avoid the opening of a new window I've decided to accomodate two ctrls in the same rectangular space: a columnlist and an arrayctrl. At some moment the arrayctrl is hided with .Hide() and the columnlist is shown. I do not know if this way to proceed is too weird and can cause some interference between these two ctrls sharing the same place.
Absolutely OK - I do the same quite often (last time in the new TheIDE select package dialog).
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Any idea or I've to prepare a test case?
Well, as TheIDE package selector seems to work OK and does exactly the same (in fact, even using ArrayCtrl and ColumnList , I am afraid testcase is needed.