How to read Object in nlog Layouts

[rams300]

I wanted to maintain some common class for logging related information like as below.

 public class LogObject
    {
        public string AppName { get; set; }
        public string StackTrace { get; set; }
        public string Message { get; set; }
        public string JobNumber { get; set; }
        public string TransactionType { get; set; }
    }

Adding entire log object in API, like as below.

 logMgr.Info<LogObject>(logObject);

now i need to print those information into log like as below.

 <layout xsi:type="SimpleLayout"
               text="AppName-- ${logObject.AppName}
                     Message-- ${logObject.Message}"
              >
      </layout>

But above layout render is not working, i am unable to read the object like logObject.Message.
i know other way is adding individual properties into variable and events, i am more looking addding entire object into log and reading in layout.

[snakefoot]

Maybe you can to do something like this:

nLogger.Info("{0}", logObject);

Then register a custom layoutrenderer for each LogObject-property like this:

NLog.LayoutRenderers.LayoutRenderer.Register("logObject-AppName", (logEvent) =>
{
    if (logEvent.Parameters?.Count == 1)
    {
        LogObject logObject = logEvent.Parameters[0] as LogObject;
        if (logObject != null)
              return logObject.AppName;
    }
    return string.Empty;
}

Then your layout can look like this:

 <layout xsi:type="SimpleLayout"
               text="AppName-- ${logObject-AppName}
                     Message-- ${logObject-Message}"
              >
 </layout>

Then you could also consider implementing LogObject.ToString(), which NLog would then use for the standard layoutrenderer ${message}.

[rams300]

Thanks Snakefoot for quick response and providing the solutions.
I am new to Nlog, i am looking for is there any possibility of accessing object members directly in Layout without writing custom code.

[304NotModified]

I assume your question has been answered, if not, let us know!

[snakefoot]

NLog 4.6.3 introduces objectpath= as option, so you can specify ${event-properties:item=logObject:objectpath=AppName}. See also #3329