<targetname='file'type='File'fileName='log.txt'>  <layouttype='CompoundLayout'>    <layouttype='SimpleLayout'text="text1" />    <layouttype='SimpleLayout'text=" -" />    <layouttype='SimpleLayout'text="text2" />  </layout></target>

text1 - text2

Advanced examples

From code

varcompoundLayout=newCompoundLayout{Layouts={newSimpleLayout("myAmazingText: "),newJsonLayout{Attributes={newJsonAttribute("time","${longdate}"),newJsonAttribute("level","${level:upperCase=true}"),}}}};

myAmazingText: { "time": "2016-10-30 13:30:55.0000", "level": "INFO" }

From XML

<nlog>  <targets>    <targetname='file'type='File'fileName='log.txt'>      <layouttype='CompoundLayout'>        <layouttype='SimpleLayout'text="myAmazingText:" />        <layouttype='JsonLayout'>          <attributename='time'layout='${longdate}' />          <attributename='level'layout='${level:upperCase=true}'/>        </layout>      </layout>    </target>  </targets>  <rules>  </rules></nlog>

myAmazingText: { "time": "2016-10-30 13:30:55.0000", "level": "INFO" }