To reproduce only create a "Windows Phone Panorama Application" template and add JumpList to second panorama tab with ItemSource property to "Items"
Telerik Controls to Windows Phone 7 are download from your post: "RadJumpList Introduction and simple usage"
http://blogs.telerik.com/valentinstoychev/posts/11-02-09/radjumplist_for_wp7_part_i_-_introduction_and_simple_usage.aspx
I have Windows Phone Developer Tools January 2011 Update release with copy and paste functionality
My xaml
<phone:PhoneApplicationPage x:Class="TestControls.MainPage"
xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone ="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell ="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:controls ="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls"
xmlns:d ="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:telerikData ="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data"
xmlns:telerikDataControls ="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Data"
xmlns:telerikPrimitives ="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Primitives"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="800"
d:DataContext="{d:DesignData SampleData/MainViewModelSampleData.xaml}"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible ="False">
<Grid x:Name="LayoutRoot" Background ="Transparent">
<Grid.Resources>
<Style TargetType="telerikPrimitives:RadDataBoundListBoxItem" x:Key="ItemContainerStyle">
<Setter Property="HorizontalContentAlignment" Value ="Stretch"/>
</Style>
<DataTemplate x:Name ="JumpListItemTemplate">
<Grid Margin ="0, 10, 0, 8">
<Grid.ColumnDefinitions >
<ColumnDefinition Width ="Auto"/>
<ColumnDefinition Width ="*"/>
</Grid.ColumnDefinitions >
<Grid Grid.Column="1" Margin ="15, 0, 0, 0">
<Grid.RowDefinitions>
<RowDefinition Height ="Auto"/>
<RowDefinition Height ="Auto"/>
</Grid.RowDefinitions >
<TextBlock Text="{Binding RouteNumber}" FontSize="16" FontWeight="Bold" Grid.Row="0" TextWrapping
<StackPanel Orientation="Horizontal" Grid.Row ="1">
<Image Source="Images/star.png" HorizontalAlignment="Center" VerticalAlignment ="Center"/>
<TextBlock Text="{Binding LineTwo}" FontSize="15" VerticalAlignment="Center" FontWeight="SemiBold" Margin="8, 0, 8, 0" Foreground ="#0795B9"/>
<Border BorderThickness="1" Background="Transparent" BorderBrush="{StaticResource PhoneSubtleBrush}" Margin="0, 3, 0, 3" Padding ="2, 1, 2, 1">
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding LineThree}" Foreground="{StaticResource PhoneSubtleBrush}" FontFamily="Georgia" FontWeight="Bold" FontSize
</Border>
</StackPanel>
</Grid>
</Grid>
</DataTemplate>
</Grid.Resources>
<controls:Panorama Title ="my application">
<controls:Panorama.Background>
<ImageBrush ImageSource ="PanoramaBackground.png"/>
</controls:Panorama.Background >
<controls:PanoramaItem Header ="first item">
<ListBox Margin="0,0,-12,0" ItemsSource="{Binding Items}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,0,0,17" Width ="432">
<TextBlock Text="{Binding LineOne}" TextWrapping="Wrap" Style="{StaticResource PhoneTextExtraLargeStyle
<TextBlock Text="{Binding LineTwo}" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</controls:PanoramaItem>
<controls:PanoramaItem Header ="second item">
<StackPanel Orientation ="Vertical">
<telerikDataControls:RadJumpList
ItemTemplate="{StaticResource JumpListItemTemplate}"
ItemsSource="{Binding Items}"
ItemContainerStyle="{StaticResource ItemContainerStyle}" >
<telerikDataControls:RadJumpList.GroupDescriptors>
<telerikData:PropertyGroupDescriptor PropertyName="LineOne"/>
</telerikDataControls:RadJumpList.GroupDescriptors>
<telerikDataControls:RadJumpList.SortDescriptors>
<telerikData:PropertySortDescriptor PropertyName ="LineTwo"/>
</telerikDataControls:RadJumpList.SortDescriptors>
</telerikDataControls:RadJumpList>
</StackPanel>
</controls:PanoramaItem>
</controls:Panorama>
</Grid>
</phone:PhoneApplicationPage>
StackTrace property is " at System.Windows.Controls.Primitives.RangeBase.OnMaximumPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object newValue, Object oldValue)
at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isSetByStyle, Boolean isSetByBuiltInStyle, PropertyInvalidationReason reason)
at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value)
at System.Windows.DependencyObject.SetValue(DependencyProperty property, Double d)
at System.Windows.Controls.Primitives.RangeBase.set_Maximum(Double value)
at Telerik.Windows.Controls.RadVirtualizingDataControl.UpdateScrollParams()
at Telerik.Windows.Controls.RadVirtualizingDataControl.BalanceVisualSpace()
at Telerik.Windows.Controls.RadVirtualizingDataControl.OnCollectionReset()
at Telerik.Windows.Controls.RadVirtualizingDataControl.OnItemsChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Controls.RadDataBoundListBox.OnItemsChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Controls.RadVirtualizingDataControl.OnListSource_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadListSource.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadListSource.RefreshOverride()
at Telerik.Windows.Data.RadCollectionViewSource.RefreshOverride()
at Telerik.Windows.Data.RadListSource.Refresh()
at Telerik.Windows.Data.RadCollectionViewSource.SourceCollectionChangedOverride(NotifyCollectionChangedEventArgs e)
at Telerik.Windows.Data.RadListSource.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, ItemViewModel item)
at System.Collections.ObjectModel.Collection`1.Add(ItemViewModel item)
at TestControls.MainViewModel.LoadData()
at TestControls.MainPage.MainPage_Loaded(Object sender, RoutedEventArgs e)
at System.Windows.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args)
at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)"