Showing data as group in gridview

hi folks,
i have a problem with gridview in which data is showing like this
 
title headers : person name address city transaction_req other details
data: someperson someaddress somecity someprice something...
....
repeating
 
now if the person has come through a group it should show in gridview like
 
data for person name: someperson1
someprson2
someperson3 etc.
 
other fields will go as same
 

thanks