Thanks for the example, it is really useful. One other question, if I wanted to do the same as your project but use OnDemandManual, how would I set the button up? Ideally I would like older messages towards the top and a button at the top to load more messages. Normally I would do the following for the button:
<HyperlinkButton x:Name="hlMore" Content="more" HorizontalAlignment="Stretch" Click="hlMore_Click" />
But as the RadJumpList in the example you provided is declared programmatically, how would I add the OnDemandManual button to this?