Render the application domain name.

From NLog 4.0+, in NLog.Extended

##Configuration Syntax

${appdomain:format=Format}

##Parameters ###Rendering Options **format - The formating. Default to Long. possible options:

• Long: default. The id as four number digit, colon, friendlyname. E.g. 0003:NLog.UnitTests
• Short. Only the id as two number digit, like "03".
• or custom like {0} - {1}. The first parameter is the"AppDomain.Id", the second the second the "AppDomain.FriendlyName". Note: use escaping of the brackets. See examples.

##Example Examples in the .config

${appdomain} //e.g. 0003:NLog.UnitTests
${appdomain:format=short} //e.g. 03
${appdomain:format=long} //e.g. 0003:NLog.UnitTests
${appdomain:format={1\} - {0\} //e.g. NLog.UnitTests - 3