can I pass a custom property to NLOG and output to file?

Question

EDIT 4: \"From\" seems to be a reserved word in NLog. Changing it \"FromID\" worked. this is an awesome way to pass variables to NLog and still keep your code clean !!!! TH

Answer 1

This is propably not the best way to do this and not even thread safe but a quick and dirty solution: You could use Environment variables:

Environment.SetEnvironmentVariable("NLogOptionID", "87");
logger.Debug("My Name id Ed");
Environment.SetEnvironmentVariable("NLogOptionID", null);

In your layout, you can use environment variables.

${environment:variable=NLogOptionID}