Thanks for replied Edward,
I don't quite understand about what you mean by rewrite,
But this is what I actually did,
Grid.Init
Create cursor mycursor (myfield1 C(100),myfield2 C(100))
WITH this
.RecordSource='mycursor'
.RecordSourceType=1
Endwith

Listbox. interactivechange
SELECT mycursor
ZAP

SELECT * from mytable into array myarray
IF _TALLY<>0
insert into mycursor from array myarray
endif
this.parent.mygrid.refresh()


Then, the grid change it's position, it's still at the same position if I look at debugger window, but it change on screen, and what "messy" is the grid shape after refresh is overlapping by the grid before refresh.