RadColumnSparkline throwing exception with null values

[Rajasekhar]

Hi Telerik Community Support,

My xaml declaration is 
<telerik:RadColumnSparkline AutoRange="False" MinYValue="0" Width="Auto" Height="24" ItemsSource="{Binding ChartValues}" YValuePath="ChartVal" Margin="0,2,0,2" ShowAxis="False"  ItemFill="{StaticResource AccentBrush}"/>

it is working fine, but if i have data like 5, null, 6 then it throwing following exception

Line: 67
Error: Unhandled Error in Silverlight Application 
Code: 4004    
Category: ManagedRuntimeError       
Message: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at System.Windows.ResourceManagerWrapper.GetResourceForUri(Uri xamlUri, Type componentType)     

Thanks & Regards
Rajasekhar

[Vladimir Milev]

Hi,

We tried to reproduce the problem, but without success. I am attaching our sample app so you can test as well. Please, feel free to modify it and send it back to us in order to help us to isolate the issue.

Kind regards,
Vladimir Milev
the Telerik team