>Hi Nadya:
>
>>I believe it's mentioned in Documentation.
>
>All I can see is stuff about adding a GH grid using addobject at runtime. There is nothing about having two GH grids on the form at any one time.
>
>>You should either set focus on both grids
>
>This works. Thank you!
>
>Best

Nadya is correct. If the grid does not get focus - AfterRowColChange() does not fire - GHL does not start highlighting.