How to tell NLog to log exceptions?

Question

Target:

<targets>
    <target name="file" xsi:type="File" layout="${longdate} ${level} ${message} ${exception}" fileName="${basedir}/log.txt" archiveAboveSize="10485760" />
</targets>

When I call Logger.Error("some message", e), where e is some exception object, it only logs the message, not the exception information. I need it to output exception message and stack trace. Any ideas what I am doing wrong?

score 22 · Accepted Answer · edited Jul 09 '13 at 18:32

22

Try to use ${exception:innerFormat=Message,StackTrace}. Here is the documentation.

edited Jul 09 '13 at 18:32

Alnoor

72
8

answered Feb 08 '12 at 18:39

kolbasov

1,548
11
15

How do you make this work with NLogViewer or Chainsaw targets? I want to use an UDP logger, such as Sentinel or Log2Console. – angularsen Apr 03 '12 at 08:56
`` `` – AuthorProxy Oct 01 '13 at 09:06

score 11 · Answer 2 · answered Apr 17 '15 at 23:03

11

I've found ${exception:format=tostring} to be the best format for logging full details.

NLog - How to Log Exceptions

answered Apr 17 '15 at 23:03

Taran

12,822
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1

For NLog >v5.0 you can use `${message:withexception=true}`, [see here](https://github.com/nlog/NLog/wiki/How-to-log-exceptions#exception-formatting). – FredM Mar 23 '23 at 13:33

score 0 · Answer 3 · answered Nov 16 '15 at 21:40

0

Yep try adding

includeSourceInfo="true"

to your target file, like;

 <target name="viewer"
            xsi:type="NLogViewer"
            includeSourceInfo="true"
            address="udp://127.0.0.1:9999" />

answered Nov 16 '15 at 21:40

keithl8041

2,383
20
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How to tell NLog to log exceptions?

3 Answers3

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