| Name | Description | .NET Framework | .NET CF | Mono on Windows | Mono on Unix |
|---|
| 1.0 | 1.1 | 2.0 | 1.0 | 2.0 | 1.0 | 2.0 | 1.0 | 2.0 |
|---|
| asp-application | ASP Application variable. |  | | | | | | | | |
| aspnet-application | ASP.NET Application variable. | | | | | | | | | |
| aspnet-request | ASP.NET Request variable | | | | | | | | | |
| aspnet-session | ASP.NET Session variable. | | | | | | | | | |
| aspnet-sessionid | ASP.NET Session ID. | | | | | | | | | |
| aspnet-user-authtype | ASP.NET User variable | | | | | | | | | |
| aspnet-user-identity | ASP.NET User variable | | | | | | | | | |
| asp-request | ASP Request variable | | | | | | | | | |
| asp-session | ASP Session variable. | | | | | | | | | |
| basedir | The current application domain's base directory. | | | | | | | | | |
| callsite | The call site (class name, method name and source information) | | | | | | | | | |
| counter | A counter value (increases on each layout rendering). | | | | | | | | | |
| date | A date and time in the specified format. | | | | | | | | | |
| environment | The environment variable. | | | | | | | | | |
| event-context | Log event context data | | | | | | | | | |
| exception | Exception information provided through a call to one of the Logger.*Exception() methods. | | | | | | | | | |
| file-contents | Contents of the specified file. | | | | | | | | | |
| gc | The information about the garbage collector. | | | | | | | | | |
| gdc | Global Diagnostics Context item. Provided for compatibility with log4net. | | | | | | | | | |
| guid | Globally-unique identifier (GUID). | | | | | | | | | |
| identity | Thread identity information (name and authentication information) | | | | | | | | | |
| level | The log level. | | | | | | | | | |
| literal | A string literal. | | | | | | | | | |
| log4jxmlevent | XML event description compatible with log4j, Chainsaw and NLogViewer | | | | | | | | | |
| logger | The logger name. | | | | | | | | | |
| longdate | The date and time in a long, sortable format yyyy-MM-dd HH:mm:ss.mmm | | | | | | | | | |
| machinename | The machine name that the process is running on. | | | | | | | | | |
| mdc | Mapped Diagnostic Context item. Provided for compatibility with log4net. | | | | | | | | | |
| message | The formatted log message. | | | | | | | | | |
| ndc | Nested Diagnostic Context item. Provided for compatibility with log4net. | | | | | | | | | |
| newline | A newline literal. | | | | | | | | | |
| nlogdir | The directory where NLog.dll is located. | | | | | | | | | |
| performancecounter | The performance counter. | | | | | | | | | |
| processid | The identifier of the current process. | | | | | | | | | |
| processinfo | The information about the running process. | | | | | | | | | |
| processname | The name of the current process. | | | | | | | | | |
| processtime | The process time in format HH:mm:ss.mmm | | | | | | | | | |
| qpc | High precision timer, based on the value returned from QueryPerformanceCounter() optionally converted to seconds. | | | | | | | | | |
| registry | A value from the Registry. | | | | | | | | | |
| rot13 | Decodes text "encrypted" with ROT-13. | | | | | | | | | |
| shortdate | The short date in a sortable format yyyy-MM-dd | | | | | | | | | |
| specialfolder | System special folder path (includes My Documents, My Music, Program Files, Desktop, and more) | | | | | | | | | |
| stacktrace | Stack trace renderer. | | | | | | | | | |
| tempdir | A temporary directory. | | | | | | | | | |
| threadid | The identifier of the current thread. | | | | | | | | | |
| threadname | The name of the current thread. | | | | | | | | | |
| ticks | The Ticks value of current date and time. | | | | | | | | | |
| windows-identity | Thread Windows identity information (username) | | | | | | | | | |
