Peter, because of the hierarchical nature of the loggers in log4net I'm not 
sure turning then on and off that way would be wise.

Imagine this logger hierarchy:

A
A.B
A.B.C
A.B.C.D

I set a logger for A to enable info logging.
I set a logger for A.B.C to warn logging.

If I check IsInfoEnabled on the A.B logger it will be true, right? Inherited 
from A
If I check IsInfoEnabled on A.B.C.D is will be false, right? Inherited from 
A.B.C

But if I was able to set IsInfo = true on A.B.C.D what does that mean? Is there 
now a new logger at A.B.C.D? If so, what appenders? If not, do I update the 
A.B.C logger since that's the first one I find up my tree? The variations and 
consequences are too crazy to have a correct answer to that question, thus... 
readonly. :-)

IIRC, there is a separate set of method calls for manipulating the logging 
hierarchy.

-Walden

--
Walden H Leverich III
Tech Software &
BEC - IRBManager
(516) 627-3800 x3051
wald...@techsoftinc.com<mailto:wald...@techsoftinc.com>
http://www.TechSoftInc.com<http://www.techsoftinc.com/>
http://www.IRBManager.com<http://www.irbmanager.com/>

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

From: Howe, Peter L [mailto:ph...@paychex.com]
Sent: Tuesday, June 04, 2013 11:23 AM
To: log4net-dev@logging.apache.org
Subject: Is<level>Enabled


Question: Why are the ILog instance properties (IsDebugEnabled, IsInfoEnabled, 
etc.) read-only?  Would it not be simpler to be able to turn these on or off at 
will from code, instead of deploying a new XML file?  Is there a programmatic 
way to turn levels on or off (for instance, by an application that reads such 
switches from a database.)?

Thanks in advance.


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