OK, I figured out I can update the sort descriptor of the list view to make the interface update. It works fine on iOS.
On Android, I'm having a separate problem. I can click and drag a row but the SelectionChanged event appears to not get invoked.
I have this in my MainActivity.cs as specified on the Getting Started page:
[assembly: ExportRenderer (
typeof
(Telerik.XamarinForms.DataControls.RadListView),
typeof
(Telerik.XamarinForms.DataControlsRenderer.Android.ListViewRenderer))]
Am I missing something?