Hello,

I have panel with difficult structure and on user action some new element is added/deleted.
In case after element is added scrollbar is appeared and if call method isValid for main panel then layout for new element is reseting, but if method isValid is called in case when scrollbar isn't exist everything is fine.

So, what is happening when scrollbar is appeared on form panel? Why in this case layout is should be reseted and how to avoid this situation?