static void Main() { File.AppendAllLines("log.csv", new string[] { $"EventName, Payload, ActivityId, RelatedActivityId" }); _ = new LoggingEventListener(); var logger = new ServiceCollection() .AddLogging(builder => builder.AddEventSourceLogger()) .BuildServiceProvider() .GetRequiredService <ILogger <Program> >(); using (logger.BeginScope(new Dictionary <string, object> { ["Operation"] = "Foo" })) { logger.LogInformation("This is a test log written in scope 'Foo'"); using (logger.BeginScope(new Dictionary <string, object> { ["Operation"] = "Bar" })) { logger.LogInformation("This is a test log written in scope 'Bar'"); } using (logger.BeginScope(new Dictionary <string, object> { ["Operation"] = "Baz" })) { logger.LogInformation("This is a test log written in scope 'Baz'"); } } }
static void Main() { _ = new LoggingEventListener(); var logger = new ServiceCollection() .AddLogging(builder => builder.AddEventSourceLogger()) .BuildServiceProvider() .GetRequiredService <ILogger <Program> >(); var state = new Dictionary <string, object> { ["ErrorCode"] = 100, ["Message"] = "Unhandled exception" }; logger.Log(LogLevel.Error, 1, state, new InvalidOperationException("This is a manually thrown exception."), (_, ex) => ex.Message); Console.Read(); }