DBCOMBO IN DBGRID

[Meetoo]

WELL WHAT I WOULD LIKE TO DO IS TO INSERT A DBCOMBO INTO A DBGRID.WHEN THE USER CLICKS ON THE ARROW A DROP DOWN WINDOW(CAN BE A DBGRID) APPEARS AND THE USER HAVE A RANGE OF SELECTION THAT HE COULD DO.
PLZ HELP ME THANKS IN ADVANCE