>For a specific reason, one of our form is using the Grid.ActiveRow property to compare its value with our form property which represents the last active row of the grid.
>
>So, basically, we have this in the Grid.AfterRowColChange():
>

>IF ThisForm.Grid.PreviousRow<>ThisForm.Grid.ActiveRow
>   ...
>ENDIF
>

>
>The problem is that this is slow when having 450000 records.
>
>It seems that the grid ActiveRow is having a weird behavior which slows down the system.

what's the actual viewable size of the grid
the problem with using any property/event that affects the whole grid is that it slows things down on large sized grids