The SPRelatedField type exposes the following members.
|FieldId||Gets the identifier of the lookup field in the child list.|
|ListId||Gets the identifier of the child list that is dependent on the parent list.|
|LookupList||Gets the SPList object that a lookup field identifies as its target (or parent) list.|
|RelationshipDeleteBehavior||Gets the delete behavior defined by the lookup field in the child list.|
|WebId||Gets the identifier of the Web site where the child list is located.|