Returns a value that indicates whether an Index object represents a foreign key in a table (Microsoft Jet workspaces only).
Return Values
The return value is a Boolean data type that returns True if the Index object represents a foreign key.
Remarks
A foreign key consists of one or more fields in a foreign table that uniquely identify all rows in a primary table.
The Microsoft Jet database engine creates an Index object for the foreign table and sets the Foreign property when you create a relationship that enforces referential integrity.