>>vfp design is wrong here.
>>vfp update the cell's controlsource after the BeforeRowColChange.
>>with NODEFAULT you stop the change activate cell, but you can leave the grid with a bad update.
>
>I found this http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3B149383 it works but doesn't seem that I should have to do it this way.

How solution is horrible;
besides it doesn't resolve the problem in the case the grid loses the focus
(AfterRowColChange doesn't happen).

Practically it doesn't serve to anything.