Name

ChildKeyConstraint

Synopsis

ForeignKeyConstraint fc = DataRelation.ForeignKeyConstraint;

Retrieves the ForeignKeyConstraint object that is associated with this relationship, if it exists. This constraint is applied to one or more DataColumns in the child table.

Example

The following code retrieves the associated ForeignKeyConstraint and uses it to ensure that cascading deletes are configured for this relationship. This means that a delete operation that affects the parent row automatically removes all related child rows as well.

ForeignKeyConstraint fk = dr.ChildKeyConstraint;

fk.DeleteRule = Rule.Cascade;