How can i make sure that only the usercontrol is loaded of the tab that is currently selected. 

I'm using an ultrawebtab with an usercontrol in each tab (controlss statically placed). It's the same usercontrol but the state differs based on the selected tab.

But i found that when i click on a tab, all the usercontrols are loaded. I configured the webtab as asyncmode=on with the option RequestContext= IncludeFormData & ResponseContext=IncludeSelectedTab

I expected that with these settings only the controls on the active tab would be loaded. How do i configure the webtab to get this behaviour?

Thanks.