Log4net 1.2.10.0 Verified May 2026

log4net.ThreadContext.Properties["UserId"] = currentUser.Id; log.Info("User action logged with context");

private static readonly ILog log = LogManager.GetLogger(typeof(OrderService)); log4net 1.2.10.0

public class CustomMemoryAppender : log4net.Appender.AppenderSkeleton log4net

Introduction log4net is a popular, open-source logging framework for the .NET ecosystem, ported from the highly successful log4j (Java). Version 1.2.10.0 , released under the Apache License 2.0, represents a stable and widely adopted release that balances robustness with essential logging capabilities. log4net.ThreadContext.Properties["UserId"] = currentUser.Id

1. Global Exception Logging (ASP.NET) In Global.asax.cs :

log4net.Config.XmlConfigurator.Configure(); using log4net; public class OrderService