log4net.Csv

CSV (Comma-Separated Values) Layout for log4net that produces properly escaped and fully valid CSV logs

Example Configuration

The CSV Layout can be used with any log4net appender. Following are examples for convenience.

Rolling File Appender Example

<appender name="file" type="log4net.Appender.RollingFileAppender">
  <file value="myapplog.csv" />
  <appendToFile value="true" />
  <rollingStyle value="Size" />
  <maxSizeRollBackups value="5" />
  <maximumFileSize value="10MB" />
  <staticLogFileName value="true" />
  <layout type="log4net.Csv.CsvLayout, log4net.Csv">
    <header type="log4net.Util.PatternString" value="thread,level,class,method,message,utcdate,exception%newline" />
    <fields value="thread,level,class,method,message,utcdate,exception" />
  </layout>
</appender>

Colored Console Appender Example

<appender name="console" type="log4net.Appender.ColoredConsoleAppender">
  <mapping>
    <level value="DEBUG" />
    <foreColor value="Purple" />
  </mapping>
  
  <layout type="log4net.Csv.CsvLayout, log4net.Csv">
    <fields value="thread,level,class,method,message,utcdate,exception" />
  </layout>
</appender>

Supported Fields

• date
  • date formatting not supported - outputs log4net default Iso8601 format
• utcdate
  • date formatting not supported - outputs log4net default Iso8601 format
• message
• logger
• level
• class
• method
• exception
• identity
• thread
• username
• appdomain
• All custom properties are supported with a case sensitive match