Hi Arjan,
Thank you for your interest in Syncfusion products.
Yes. It is possible to bind an ObservableCollection data to the DocumentContainer’s ItemsSource property. We have created a simple sample to demonstrate this feature. Please find the sample from the link given below.
http://files.syncfusion.com/support/tools.WPF/7.2.0.20/80731/main.htmHope this will fulfill your requirement. Please let me know if you have any other queries.
Thanks,
Prabu