Posted
on Jan 30, 2012
(permalink)
Hello,
I am having the same issue with version 2011.3.1220.1040.
After switching panes inside the same PaneGroup with IsContentPreserved set to true, my user controls still unload.
This causes a 1.5 second delay from when the user clicks the tab, to when the tab is actually switched and rendered.
Thanks,
Ryan