336 CHAPTER 8: T HE E VENT LOGto prevent them from being generated in future. See “Disabling andEnabling Events” on page 349 for more information on this.If you have marked an event for deletion and later decide that you do notwish to delete it then, providing the event ageing process has not yetdeleted it, you may clear the deletion mark by selecting the event andthen selecting Edit > Undelete. Depending upon the current filterconfiguration in the Event list, you may need to adjust the filter beforeyou can view and select events marked for deletion. See “Filter DialogBox” on page 339 for more information on how to do this.Similarly, you can clear the deletion mark for multiple events in oneoperation by first selecting all the events you wish to clear the deletionmark for and then selecting Edit > Undelete.You can only clear the deletion mark for an event if the event ageingprocess has not yet removed the event from the database. Once theevent ageing process has removed the event from the database it isunrecoverable.See “Managing Event Ageing” on page 361 for more information onhow the event ageing process decides which events to remove from thedatabase.Refreshing the EventsListThe Events window is automatically kept up-to-date. When new eventsare logged that match the filter configured for the window, the event isautomatically added to the list. As a result it is not normally necessary tomanually refresh the Events list.However, if you have a large number of events in the events databasethen the initial population of the table when you launch the Eventswindow, or subsequent re-populations after you change the filter maytake some time. If this operation is taking too long then you may wish tostop the operation before it is completed, possibly in order that you maychange the filter to reduce the number of events that will be viewed.To stop an update while it is in progress select View > Stop.After stopping an update the Events list may not contain all of the eventsfrom the events database that match the filter, as it will only containthose events that had been processed before View > Stop was selected.
