ASP.NET Trace Identifier

Platforms Supported:All (Supported inASP.NET Core andASP.NET)

Introduced in NLog.Web.AspNetCore ver. 4.3.1 and NLog.Web ver. 4.7.1

${aspnet-TraceIdentifier:ignoreActivityId=boolean}

• ignoreActivityId: Only ASP.NET Core. UseHttpContext.TraceIdentifier instead ofSystem.Diagnostics.Activity.Current.Id

• ASP.NET Core 3: by defaultSystem.Diagnostics.Activity.Current.Id.
• ASP.NET Core 1+2:HttpContext.TraceIdentifier
• ASP.NET:HttpWorkerRequest.RequestTraceIdentifier.
  • Requires IIS ETW feature enabled, seeMicrosoft docs
  • Alternative could use${activityid} together withCorrelationManager.ActivityId.

Seecode