I attached a picture of what happens when I load a saved XML layout which has a formula column as a group by column. As you can see the column "Short Rating" has values but every single row is grouped under one category which has a value of null. Is this a bug or is there a way around this?
Sounds like a bug to me. My guess is that when you load the layout, the grouping is occurring before the values are calculated.
You should Submit an incident to Infragistics Developer Support
You might be able to work around this by calling the Recalc method on the UltraCalcManager component to force all calculations to be preformed synchronously, and then call Refresh on the grid.DisplayLayout.Band.SortedColumns collection to refresh the groupings.
I am currently using that as a workaround. I will submit a bug report. I actually submitted a bug report for a separate issue that you had verified as well and I received a response saying they were unable to reproduce it. They actually didn't do the reproduction correctly and I responded informing them the correct way to reproduce it. Is there any way you can look in to this for me, it is:
Thanks,
Boyd
Boyd,
I've taken a look into case number CAS-01476-BP2R3C, and I see that the Developer Support Engineer was able to successfully reproduce the issue based on additional feedback you provided as a follow-up. We notified you of this on August 4; check the history of this case on your My Support Requests page. This update includes a link to where you can find information on the current status of the related development issue; at the moment, the issue is fixed, verified, and is awaiting release in the next hot fix.
In the future, if you're not satisfied with the feedback provided by Developer Support, please feel free to contact me at dsmanager@infragistics.com to let me know.