Did you try the "usual" way?

thisform.grid1.Recordsource = Space(0)
* Recreate data in the table
thisform.grid1.Recordsource = "mytable"

>It was recommended that to keep a grid from crashing when I delete the table's records and refill them with new ones... I should:
>- use COPY STRUCTURE to create a temporary file with proper structure
>- change the grids RECORDSOURCE to the new structure
>- change the grids columns CONTROLSOURCE to the new structure
>- change the delete the old source file and recreate the data
>- change the grids RECORDSOURCE to the recreated file
>- change the grids columns CONTROLSOURCE to the new structure
>
>How do you change the CONTROLSOURCE... I tried thisform.grid1.columns(1).controlsource= and I get an error of unknown item.