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Questions tagged [nlog]

NLog is a free logging platform for .NET

NLog is a logging platform for .NET with support for structured logging. NLog enables easy routing and filtering of output to various targets.

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2784 questions
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AspNetSession layout renderer not working

I am using NLog for logging in my asp.net 4.5 website. I have used NLog 4.0. Now I need to use session variables in my logs. So i tries to use AspNetSession layout renderer. This layout renderer is included in Nlog.Web. I have added this dll and…
Deeps
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How to use NLog from multiple projects in the same solution

I searched the net for a really simple question. My solution is one exe (WPF) project and four class libraries. I need a logging and I like NLog. How can I use it from all of the 5 projects in one solution ? I don't know, do I need to create (or…
sinkien
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How to force NLog to overwrite the log file

I need NLog to overwrite the log file when the application is restarted. Currently it appends to existing file. For example I have something like this in my NLog.config
Vadim
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3 answers

Automatically log System.diagnostics.trace messages to an Nlog target

Say you have C# trace messages all over an application. Something like: Trace.TraceInformation("Service Started"); How do you automatically log this to an nLog target without having to add code like the following to all the classes that…
Solracnapod
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How to tell NLog to log exceptions?

Target: When I call Logger.Error("some message", e), where e is some…
Andrey
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C# derived class type needed in base for logging using NLog

We're using NLog for logging in an C# MVC3 web application. All of our controllers extend a custom base "ApplicationController" that gives us access to a constantly needed methodes and s members. I'd like all controllers to have access to the…
Bobby B
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NLog config file to get configuration setting values from a web.config

Is there a method to get a value from the section of a web.config within NLog layout variables? I already store SMTP details within my web.config and don't want to duplicate the settings just to use within my…
Dave Hogan
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ILogger not writing TRACE and DEBUG messages to target

I'm working on setting up some logging in our ASP.NET Core 3 application, using ILogger (Microsoft.Extensions.Logging) with NLog to enable writing to text files. The problem is, that the ILogger does not write TRACE and DEBUG level messages. Either…
RonRonDK
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NLog not logging on all levels

ASPNET Core 2.0 with latest Nlog. All config files load correctly. My config file is simple, I just want it to log every thing.
Piotr Kula
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Does ASP.NET Core's built-in logging make NLog/Serilog/etc obsolete?

We use NLog or Serilog to do logging. We're busy porting a system from ASP.NET to ASP.NET Core, which has logging built in. Ideally, we'd like to drop NLog, as there doesn't appear to be a need for it anymore. However, is the built in logging…
grokky
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LogManager.configuration is null

I've added NLog using nuget to a project and added NLog.config. I'm running the debugger and getting a NullReferenceException due to the fact LogManager.Configuration is null: LogManager.Configuration.AddTarget("sentinel", sentinalTarget); This…
P.Brian.Mackey
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Ninject.Extensions.Logging.nlog2 - How to?

Browsing the nuget library, i came across Ninject.Extensions.Logging.nlog2. Some googling and trying to figure things out, I can't seem to find how or why you would use this extension. Is it advisable to use with MVC 3? What exactly is the…
Erik Funkenbusch
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1 answer

Entity Framework logs duplicates

We're running Entity Framework 6 and have a DatabaseLogFormatter that formats our data, and it's logged via an NLog AsyncTargetWrapper to a file. The application is an MVC5 web app. The DatabaseLogFormatter is mostly empty stubs, except LogCommand…
muddymess
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NLog GetCurrentClassLogger() NullReferenceException using StructureMap (Full Trust)

It seems like NLog can't use reflection for GetCurrentClassLogger(), even though my MVC 3 app is deployed in a Full Trust environment on IIS7. I'm using StructureMap 2.6.1 and the problem seems to appear sporadically between deploys. I can't figure…
Petrus Theron
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NLog Inner Exception Logging

I'm trying to log inner exception messages by using NLog. This is a piece of my NLog.config file:
Luis Teijon
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