I have reproduced the behavior you are reporting and can confirm that this is not the expected behavior. A ticket has been created for this issue and you will be notified when it is fixed.

Thank you for bringing this to our attention.

Hi

It seems that I have the same problem. My source is an Linq to Sql Entity which has some properties of sql dbtype money and decimal. This properties can be null.

When i try to make a sum with statfunction, I get nothing.

Thanks

This is to let you know that the issue you submitted has been resolved, and the fix is now available through our "DataGrid for WPF Package 2.0.8277.15250" service release.  You can download it from the following page :

http://xceed.com/pages/TopMenu/Downloads/Updates.aspx?Lang=EN-CA