public override void Delete(ref TransactionFramework.TransactionChain chain)
{
MapManager.RelationshipFactory.DeleteRelationship(this);
TransactionFramework.DeleteRelationshipTransactionLink deleteRelationship = new TransactionFramework.DeleteRelationshipTransactionLink();
deleteRelationship.DomainId = DomainId;
deleteRelationship.MapManager = MapManager;
deleteRelationship.Relationship = this;
chain.AddTransaction(deleteRelationship);
}
}