BufferedWebEventProvider.Flush Method ()
Moves the events from the provider's buffer into the event log.
Assembly: System.Web (in System.Web.dll)
When this method is called, all the events in the buffer are immediately moved from the buffer to the log, regardless of how much time has elapsed since last write or how many events are in the buffer. The time of the last write is reset to the time of the flushing action.
Available since 2.0