Hi,
it seems to still be a problem.
Here are the steps i followed :
Add an update panel
Inside updatepanel, add tab container
trigger the updatepanel refresh
code behind :
dynamically add tabcontrols. Each tabcontrol contains a dynamically added daypilot calendar
When trying to render the page, javascript error occurs : "DayPilotCalendar" is not defined.
I hope there's a way to workaround this problem.