I am testing developer express quantum grid with IBO and in the
groupping mode the grid needs a KeyField, besides when you select a row it
performs a locate by this KeyField to synchronize the grid and the dataset.
I am having problems because my KeyField is composed and calculated in the
fly and with other connectivity VCLs I could to locate by this field but IBO
gives me an error that it doesn't find the calculated field. Any idea? I
know that I could to setup a field and a generator but I think that I
wouldn't be earning any performance because I use a SQL order. Is there any
IBO property or IB to give me a KeyField or can I solve the Locate problem?

Thank you very much.