public DalRis.FacContratoObraSocialCollection FacContratoObraSocialRecords() { if (colFacContratoObraSocialRecords == null) { colFacContratoObraSocialRecords = new DalRis.FacContratoObraSocialCollection().Where(FacContratoObraSocial.Columns.IdObraSocial, IdObraSocial).Load(); colFacContratoObraSocialRecords.ListChanged += new ListChangedEventHandler(colFacContratoObraSocialRecords_ListChanged); } return(colFacContratoObraSocialRecords); }