>I want that I retrieve records, change and again save in table.

>Select * from order where order_id=123 into cursro kk
>Thisform.Grid1.RecordSource="kk"
>but the Control of Grid is ReadOnly
>now How I change the Record and again save in table.

CURSORSETPROP([Buffering],3,[kk]) && enables optimistic row buffering on the cursor

The cursor can then be modified. Once this has been done, perform a GETFLDSTATE([kk]) and look for the fields that have been changed ('2'$GETFLDSTATE[kk]).

If these are present, perform an UPDATE ORDER SET field1 = kk.field1, field2 = kkfield2 etc... WHERE order.order_id = kk.order_id

Hope this helps.