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Streaming logs with SignalR 2.0

by Ondra Morský

Implement NLog logging with SignalR

NLog for LinqPad

by Zoltán Zörgő

Presentation of a simple library supporting use of NLog with LinqPad

NLog: Rules and filters

by Ivan Yakimov

In Confirmit, we use NLog library for logging in .NET applications. Although there is a documentation for this library, I found it hard to understand how the loggers work. In this article, I’ll try to explain, how rules and filters are used by NLog.

NLog LayoutRenderer for Assembly Version

by Sebastian Solnica

NLog LayoutRenderer for Assembly Version

Latest Articles

Integrating NLog with ASP.NET Core Web Application

by Sreejith Gopinathan

Error logging in ASP.NET Core Application with NLog

NLog: Rules and filters

by Ivan Yakimov

In Confirmit, we use NLog library for logging in .NET applications. Although there is a documentation for this library, I found it hard to understand how the loggers work. In this article, I’ll try to explain, how rules and filters are used by NLog.

Best Logging libraries for ASP.NET MVC

by Saineshwar Bageri

In this article, we are going to learn how to implement the best Logging libraries available in the market for an ASP.NET MVC application.

NLog for LinqPad

by Zoltán Zörgő

Presentation of a simple library supporting use of NLog with LinqPad

All Articles

Nlog

Streaming logs with SignalR 2.0

14 Apr 2014 by Ondra Morský

Implement NLog logging with SignalR

NLog for LinqPad

7 Aug 2018 by Zoltán Zörgő

Presentation of a simple library supporting use of NLog with LinqPad

NLog: Rules and filters

6 May 2019 by Ivan Yakimov

In Confirmit, we use NLog library for logging in .NET applications. Although there is a documentation for this library, I found it hard to understand how the loggers work. In this article, I’ll try to explain, how rules and filters are used by NLog.

NLog LayoutRenderer for Assembly Version

22 Nov 2012 by Sebastian Solnica

NLog LayoutRenderer for Assembly Version

How does one use Nlog in vb.net?

8 Dec 2013 by thatraja

I think it's time to update this again soon.NET Code Conversion - Convert your code[^]

How to Upload NLog Configuration into Version Control System?

9 Apr 2016 by Southmountain

A discussion on how to upload NLog configuration into version control system for beginners. Two configurations are given here.

Why does nlog keep more than the requested number of archive files?

18 May 2017 by Rolf Kristensen

You should remove "${longdate}" from the archiveFileName. The place-holder "{##}" will automatically insert date and sequence-number. Instead use the File-Target parameter archiveDateFormat to control the date-layout used inside the place-holder.

Have nlog file permissions changed in the latest windows 10 update?

13 Jun 2017 by Patrick Skelton

This turned out to be the Gamut File Viewer (www.gamutsoftware.com), which I have just started using (that should have been my clue). Reading the docs, it seems it has the functionality to clear the log file, which probably means it keeps a permanent lock on the file. I am surprised that I was...

How do I filter an nlog logger to contain only lines containing a substring?

12 Sep 2017 by Patrick Skelton

I have read the docs on this, but I can't get an NLog logger to contain only lines that contain a fixed substring. I am using the code below. The file is written but contains all logging output, just the same as another log I have that has no filter. Can anyone please tell me what I am doing...

How do I filter an nlog logger to contain only lines containing a substring?

12 Sep 2017 by Patrick Skelton

The answer to this is (as I suspected) annoyingly obvious. The clue is in the name. These things are called 'filters', so they don't say what should be written to the log; they say what should not be written to the log. So, it works if I change the filter to:

Integrating NLog with ASP.NET Core Web Application

12 Aug 2020 by Sreejith Gopinathan

Error logging in ASP.NET Core Application with NLog

How does one use Nlog in vb.net?

8 Dec 2013 by Mehdi Gholam

Try this site : http://www.carlosag.net/tools/codetranslator/[^]

Logging in database and text file using Nlog

15 Apr 2015 by Mithun P

Hi,I have used log4net before where there was no need to write any code just do some configuration in config file to log the errors. Now i want to do same using Nlog but couldnt achieve this . Can some show me sample how to log using Nlog. I tried below code in config file ...

How to write NLOG trace on remote server(web api)

7 May 2015 by Venkata Durga Rao

static void Main(string[] args) { WebServiceTarget target = new WebServiceTarget(); target.Url = new System.Uri("http://localhost:52427/api/audit"); target.Protocol = WebServiceProtocol.HttpPost; target.Parameters.Add(new...

Why UserStackFrame is null and do I have to set up it?

13 Jul 2015 by zhshqzyc

I am using NLOG to log the information. There is a property UserStackFrame.I used the code.protected override void Write(LogEventInfo loggingEvent) { try { var renderedEvent = Layout.Render(loggingEvent); var...

Why UserStackFrame is null and do I have to set up it?

15 Jul 2015 by Hector Menchaca

Hello,In this case and as per LogEventInfo documentation:UserStackFrame get the stack frame of the method that did the logging.You need to set the Stack Trace using setStackTrace method of the LogEventInfo class. And just to be sure maybe after do the validation on userStackFrame...

Can app pool recycle be avoided when using Nlog EnableLogging() and DisableLogging() functions?

29 Sep 2015 by Member 11955380

I have a WCF Service in which Nlog is used for logging. The requirement is to enable/disable Nlog logging programmatically. For doing this I have used EnableLogging() and DisableLogging() functions. The problem which I am facing is, state of logging is getting changed only on app pool recycle....

using NLog in conjuction with Microsoft.Extensions.Logging in asp.net vNext.

26 Nov 2015 by Ksh_Sr

I am making a logger and wish to use the nLog as one of the log providers for the application. I also intend to configure nLog according to Microsoft.Extension.Logging rc1- final release in Asp.Net vNext application.i tried googling but it wasnt so fruitful.Any help or guidance is deeply...

using NLog in conjuction with Microsoft.Extensions.Logging in asp.net vNext.

28 Nov 2015 by Ksh_Sr

Refer to the article http://www.codeproject.com/Articles/1005242/Using-nLog-with-asp-net-vNext[^]

Performance of my web API

26 Jun 2016 by Bastien Vandamme

Hello,I just herited of a very bad Web API code in C#. I need to improve it but I don't know where to start. There are plenty f classes and the code is a nightmare.I'm also sure that part of this code is never used. I would like to count the number of time each request is called and what...

Why does nlog keep more than the requested number of archive files?

18 May 2017 by Patrick Skelton

I have the NLog configuration below:

Have nlog file permissions changed in the latest windows 10 update?

13 Jun 2017 by Patrick Skelton

I have been using NLog in a WPF application for some months. I am developing in Visual Studio 2015 on Windows 10. I write from my application using NLog into \bin\Debug\Logs. Suddenly I find I do not have permission to delete log files in this directory. And this obviously propagates up the...

Why my logs file not creating on azure blob storage

21 May 2019 by arvindcis

I want to save my Error logs file on Azure Blob Storage. I am able to store these file on FTP Folder by NLog.config. What I am doing wrong with my code. Even Log file creating successfully on Local Machine. Thanks in Advance What I have tried: My Nlog.config file ...

Why my logs file not creating on azure blob storage

21 May 2019 by Gerry Schmitz

NuGet Gallery | NLog.AzureAppendBlob.Standard 1.0.3[^]

Problem with log data in xamarin form

20 Oct 2021 by mohamad_ali

hi , i used nlog to get log in xamarinform but the nlog not loged any thing whats problem? What I have tried: nlog.config:

Problem with log data in xamarin form

21 Oct 2021 by Rolf Kristensen

Your logging rule for the file-target is only enabled for warn-/error-logging. Maybe update your main-method to log an Error-event. Else you will only get output to console. Also make sure that Nlog.config is loaded correctly from assembly...

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by Patrice T

Quote: If the input size n is 10^9, then it should take 10^9 * log(10^9) / 10^9 = 9 second, right? No ! You don't calculate runtime from Big O notation, at least not by itself. The Big O notation tells you the category complexity of an...

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by CPallini

The big O doesn't give the exact time of execution. See, for instance Big O notation - Wikipedia[^] (Properties sections, multiplication by a constant).

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by OriginalGriff

To add to what the others say, you can't equate clock cycles directly with execution time anyway - some machine operations take n cycles to execute, others may be n * 2. To add to that, modern processors are pipelined - so some instructions may...

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by Greg Utas

30 seconds is about right if it's log2(n). log2(1000) ~= 10. EDIT: O(n log(n)) algorithms often recursively divide the problem in half, solve each part separately, and then combine the solutions. This is why log2 is usually implied. Mergesort is...

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by Luc Pattyn

the big O notation only tells you how the execution time will change when the "size" of the problem is changed, it does not provide an actual estimate for a specific case. In other words, there is an unknown factor, so for example O(n2) could...

Calculate runtime on n log(n) big O notation?

11 Apr 2022 by Hoang Minh Quang FX15045

I'm learning a Coursera course about time complexity. I encounter this in a video and I think something is wrong. "So suppose that we have an algorithm whose runtime is roughly proportional to n and we want it to run it on a machine that runs at...

Best Logging libraries for ASP.NET MVC

22 Feb 2019 by Saineshwar Bageri

In this article, we are going to learn how to implement the best Logging libraries available in the market for an ASP.NET MVC application.

How to NLog (2.1 & 3.1) with VisualStudio 2013

6 Oct 2014 by _Noctis_

This will let you start logging quickly with VS2013 and NLog.

A Simple Remote Logging Platform

1 Apr 2017 by Daniele Fontani, keggyy

In this article, we explain how to build a simple and easy to use log platform, keeping in mind performance ad security.

How to NLog (4.2) with Visual Studio 2015

11 Nov 2015 by _Noctis_

This will let you start logging quickly with VS2015 and NLog 4.2.

Logging: How to Growl with NLog 3 (or 2.1)

15 Jun 2014 by _Noctis_

This will set you logging from your NLog to your Growl in no time.

LowLevelDesign.NLog.Ext and ETW targets for NLog

18 Apr 2014 by Sebastian Solnica

LowLevelDesign.NLog.Ext and ETW targets for NLog

Using nLog with ASP.NET vNext

29 Nov 2015 by Ksh_Sr

This tip helps you implement the nLog in conjunction with Microsoft.Extension.Logging framework in ASP.NET vNext.

How does one use Nlog in vb.net?

8 Dec 2013 by Kats2512

Hi,I need to add logging to a console application I created recently and I have been asked to use NLOG. I have mainly come across C# examples and hardly understand C#. If someone could please provide me with examples of vb.net code it would make a difference to me :) thanks

Config a Nlog path in app config

8 Jun 2015 by zhshqzyc

We can just add the prefix to it.

Calculate runtime on n log(n) big O notation?

17 Jan 2024 by Mickey P

Big O notation talks about generalizations. its similar to if you were doing size estimates in lets say economics: such that 1000 and 750 would be both rounded to 1000 and what is interesting is 10K is not in the same ballpark of 100K but 13K is...

Config a Nlog path in app config

13 May 2015 by zhshqzyc

I want to put the log file in a given path. It is in app.config in a class library project, say I want to save the log in "C:\Test\log.txt" or a network path. How to do it?Currently I have