I have a form with grid and another few text boxes to add value to the source table.
I populate the grid in 'load' of the form and its very good by the following syntax:

select * from melamdim into cursor crsrgrid readwrite
ThisForm.grdmelamd.refresh()

When I want to add new things to the table and to update the grid, my code of the 'safe' command is like the following:

set safety off
zap in crsrgrid
set safety on
select * from melamdim into cursor crsrgrid readwrite
ThisForm.grdmelamd.refresh()

The table updated, but the grid become whait, what can I do?