Hi Dominik,
Thank you for your patience.
We have checked the issue with display date. As per TabControl behavior, only visible tab element’s IsLoaded property is true, other tab elements are set to false. Hence while changing display date of second scheduler it doesn’t update the view.
In further analysis we found that on switching to the next tab, controls are not refreshed so the display date not updated at all. So, to resolve this issue we can set display date for scheduler in the loaded event of scheduler. On switching between tabs, loaded event will trigger for current tab elements here set DisplayDate for scheduler.
We hope this helps. Please revert us if you have any concern.
Regards,
Karthik Raja A