Friday, 26 September 2014

TIL - Set EventId when Logging to the Event Log with Log4net

I used to be a fan of the Enterprise Library, but lately I've found myself using Log4net instead, which is not bad.

We wanted to log fatal errors to the event log, which can be easily done by configuring a trace listener, however we also wanted control over the event id displayed in the event log to allow meaningful monitoring

Turns out it's pretty simple:
log4net.ThreadContext.Properties["EventID"] = 1337;log.ErrorFormat("Elite Exception: {0}.",  ex); 

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