How to force a Client DataSet to recalculate calculated and internal calculated fields?

I have a ClientDatSet with a few fkInternalCalc fields. The CDS is not linked to any provider; instead it's filled on the fly. How can I force CDS to recalculate all the "calculable" fields? I can not call Refresh() because there is no provider to refresh data from. The only way I have come with so far has been to navigate through all records, which is not the best way.

PS: I have read this question and this post, but I'm hoping for a more elegant way.