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Fluent API
Rolf Kristensen edited this pageDec 28, 2024 ·8 revisions
⚠️ Marked obsolete with NLog 5.0, that introducesFluent-Logger-API with optimizations to reduce memory allocations.
Writing info message via fluent API.
usingNLog.Fluent;_logger.Info().Message("This is a test fluent message '{0}'.",DateTime.Now.Ticks).Property("Test","InfoWrite").Write();
Writing error message.
try{stringtext=File.ReadAllText(path);}catch(Exceptionex){_logger.Error().Message("Error reading file '{0}'.",path).Exception(ex).Property("Test","ErrorWrite").Write();}
Use the static Log class so you don't have to include loggers in all of classes. The static Log class using .net 4.5 caller info to get the logger from the file name.
Writing info message via static Log class with fluent API.
Log.Info().Message("This is a test fluent message.").Property("Test","InfoWrite").Write();
Writing error message.
try{stringtext=File.ReadAllText(path);}catch(Exceptionex){Log.Error().Message("Error reading file '{0}'.",path).Exception(ex).Property("Test","ErrorWrite").Write();}
-Troubleshooting Guide - See available NLog Targets and Layouts:https://nlog-project.org/config
- All targets, layouts and layout renderers
Popular: - Using NLog with NLog.config
- Using NLog with appsettings.json