>> select * from child where child.id_fk = parent.id_pk into cursor tempcombo

won't this select all records from the child table.

shouldn't you save the parent.id_pk to a variable or property and issue
select * from child where child.id_fk = into cursor tempcombo

Work as if you don't need money
Love as if you've never been hurt before
Live as if this is your last day to live
Dance as if no one's watching