I'm Programing in VFP9 But This problem It is all Version

I Have a grid object 10 Line to capture information and in afterrowcolchange i have the code:

Lparameters nColIndex
Local lcRow
With This
If nColIndex>6
lcRow=(.ActiveRow+1)
.ActivateCell(lcRow,1)
Select(.RecordSource)
If !Eof()
Skip
Endif
Endif
Endwith

The Problem is when I have more than 10 line This code is how not exist
After size grid activellcell is null

Thank,
Oscar F.