Hi David Ocasio,
Basically, the aggregate results should be recalculated on change of the values inside the particular column, once you implement the INotifyPropertyChanged Interface. Please provide us with more details about your exact scenario so that we could investigate it.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items