by trying to fix the problem with "ingore minsize"
I found another problem.
When a panel with "AutoHide" is resized it does not fire the events
Resize / SizeChanged if the size is smaller than MinSize.
Create a winform app.
Add a dockingmanager with two panels.
Set MinSize for the left panel to 200.
Add a listbox to the right panel.
Add a handler for Resize / SizeChanged for the left panel.
In the handlers add:
Now run the app and make the left panel autohide.
Drag the panels "splitter".
Every time you release the splitter two listbox entries are generated.
Drag the panel smaller than 200 (it becomes smaller) - and no entries are generated!