Column Footer Sum function for TimeSpan

[Brian]

i have columns that are TimeSpan data and need to SUM them into the footer.  I have used the example with the latest release and still no success.  Further, it gives me an "Object null reference" when trying to export the grid witht he column footer aggregate function in place.

Any example on how to SUM TimeSpan would be great.

[Vanya Pavlova]

Hi Brian,

 
Actually it is better to create your own custom aggregate function that will allow you to sum TimeSpan objects as it is shown in the following forum thread "Timespan Sum Aggregation Function".
Please try to implement this approach and let me know how it fits in your custom scenario.

Kind regards,
Vanya Pavlova
the Telerik team

[Brian]

Ok, ill try that...   Thanks