I have an application using the telerik docking-framework and timelines. I have an issue when undocking a frame containing a RadTimeline.
I get a NullPointerException in Telerik.Windows.Controls.TimeBar.TimeIntervalContainerBase.RemoveDummyItem.
It turns out I only get the exception when I have the Intervals property set. If I remove the Intervals it does not crash.
I have another dockpanel with a RadTimeline as well, but that one does not generate the NullPointerException, so maybe I am doing something bad.
My RadTimeline xaml which crashes looks like this:
Here is the callstack:
Do you have any clue what is causing the issue?