.NET/log4net configuration: LevelMatchFilter with DenyAllFilter to discard several log levels within a range
Posted by jpluimers on 2013/06/27
log4net configuration can be a tad intimidating at first.
When you do not want to log all levels, and the levels you want to log are not noncontinuous, then you can combine the LevelMatchFilter with a DenyAllFilter.
The filter classes in the log4net do not provide much help on this, but the filters section in the log4net manual is better.
This StackOverflow question has a very nice answer explaining it: Discarding several log levels within a range with log4net.
via: Discarding several log levels within a range with log4net – Stack Overflow.