Bad group name in Grouping Grid

Hi, I''m having a problem with the group name that''s shown on my grouping grid controls. I have some fields (integers, foreign keys for relationships) replaced by other fields (names, for example) in some cells. When I drag and drop one of those fields on the drop zone for grouping, it shows the real field (the integers), instead showing the display field. Do you have any idea of how could I solve this? Thank you very much Roberto

Hi Roberto Here is a sample solving this issue.

gcc-fk_c6c104e6.zip

Thank you very much, I''ll check it! Roberto