public DalRis.SysEfectorCollection SysEfectorRecords() { if (colSysEfectorRecords == null) { colSysEfectorRecords = new DalRis.SysEfectorCollection().Where(SysEfector.Columns.IdZona, IdZona).Load(); colSysEfectorRecords.ListChanged += new ListChangedEventHandler(colSysEfectorRecords_ListChanged); } return(colSysEfectorRecords); }