I have problem with displaying group headers after when ever I change date in timeline view. There is xaml for schedule view:
GroupDescriptionsSource and ResourceTypesSource are initialized and filled by some data in view model constructor.
On image grupheader-ok.jpg - is all OK and this what I want every when I change date, but if I go to the future date, it displays like on image groupheader-problem.jpg and If I go back to the actual week (current date) then it displays like on image groupheader-problem-back.jpg.
Where could be problem?
Thank you for your answers.