The call site source file name. For full callsite useCallSiteLayoutRenderer

Introduced in NLog v4.5

Supported in .NET and Mono.

${callsite-filename:includeSourcePath=Boolean:skipFrames=Integer}

• includeSourcePath - Shows the full path of the source file. Boolean Default: True
• skipFrames - The number of frames to skip. Integer Default: 0
• captureStackTrace - Logger should capture StackTrace, if it was not provided manually. Default:true

  Introduced with NLog 4.7.1

Please also note that this infers heavy performance hit when doing lots of logging, as it has to capture full StackTrace for every log message.