Midnight Coders Support: 14:30:07 dataMapper.Connection.DomainObjectAffected += new DomainObjectAffectedHandler(OnDomainObjectAffected); Midnight Coders Support: 14:30:22 void OnDomainObjectAffected(DomainObject domainObject, IDataMapper dataMapper, DataMapperOperation operation) { } Midnight Coders Support: 14:30:40 DomainObject is your active record Midnight Coders Support: 14:30:52 dataMapper is obviously the data mapper where the change occured Midnight Coders Support: 14:30:56 and DataMapperOperation is an enum Midnight Coders Support: 14:31:05 public enum DataMapperOperation { update, delete, create }