This question is locked. New answers and comments are not allowed.
Below is the xaml, is the GroupHeaders and StickyHeaders are not showing, but the items in the list are, this worked in a page, but I decided to make the list just a popup due to navigation...
<telerikPrimitives:RadWindow IsFullScreen="True" Background="{StaticResource PhoneBackgroundBrush}"> <telerikData:RadJumpList IsStickyHeaderEnabled="True" ItemsSource="{Binding Items}"> <telerikData:RadJumpList.StickyHeaderTemplate> <DataTemplate> <Border HorizontalAlignment="Stretch" Background="{StaticResource PhoneBackgroundBrush}"> <Border Width="64" Height="64" Margin="12,0,0,0" HorizontalAlignment="Left" Background="{StaticResource PhoneAccentBrush}"> <TextBlock Margin="6" HorizontalAlignment="Left" VerticalAlignment="Bottom" Style="{StaticResource PhoneTextExtraLargeStyle}" Text="{Binding}" /> </Border> </Border> </DataTemplate> </telerikData:RadJumpList.StickyHeaderTemplate> <telerikData:RadJumpList.GroupHeaderTemplate> <DataTemplate> <Border Width="64" Height="64" Margin="12,0,0,0" HorizontalAlignment="Left" Background="{StaticResource PhoneAccentBrush}"> <TextBlock Margin="6" HorizontalAlignment="Left" VerticalAlignment="Bottom" Style="{StaticResource PhoneTextExtraLargeStyle}" Text="{Binding}" /> </Border> </DataTemplate> </telerikData:RadJumpList.GroupHeaderTemplate> <telerikData:RadJumpList.ItemTemplate> <DataTemplate> <Grid Margin="0,0,0,12"> <TextBlock Style="{StaticResource PhoneTextExtraLargeStyle}" Text="{Binding}" /> </Grid> </DataTemplate> </telerikData:RadJumpList.ItemTemplate> </telerikData:RadJumpList> </telerikPrimitives:RadWindow>