>How do I pass the object reference of the grid object to my form?

Don't. Use ASELOBJ() to get a reference to the selected object instead and then work with an object reference instead of the name. This approach also lets you get the macros out of your code.

nCount = ASELOBJ( aGrid )
IF nCount <> 1 OR aGrid[1].BaseClass <> "GRID"
* error message that things aren't set up right
ELSE
* do your processing referencing the grid as aGrid[1]
ENDIF

Tamar