I have a Form class in which are two tables loaded (PARENTTABLE and CHILDTABLE).

PARENTTABLE and CHILDTABLE are linked with CID_PARENT field in PARENTTABLE.

When I want to do:

SELECT childtable
APPEND BLANK

VFP 8.0 shows:
Cannot write to the record because it is in use (Error 1502).

I don't understand why?

I have discovered that when in DataEnvironment I delete Relation object between those two tables error disapear, but I need that Relation.

Someone help me?