Fairly new, and I hope this isn't a dumb question, but...
When I create a RadTimeBar by its lonesome, and bind values to the PeriodStart/End, SelectionStart/End everything works as expected. If I use it in a ItemTemplate in a RadListBox, intervals no longer show.
Thank you for your interest in our RadTimeBar control.
The most common reason behind this is that the binding fails. Can you double-check the Output of VS for binding errors? If such exist, you can double-check which view model holds the properties which the PeriodStart/End, SelectionStart/End of the TimeBar are bound for. If not, can you share how you have set-up the RadTimeBar control and the ITemTemplate of the RadListBox? Also, it is possible to isolate this behavior in a standalone project so I can debug it on my side?
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Actually the binding was working fine. The problem was that the RadListBoxItem is measuring the RadTimeBar with infinity, and therefore had no context for sizing the intervals. I bound the Width of the item template to the ActualWidth of the parent object, and now they are showing as expected.