Structured logging

[DiskCrasher]

Does this sink support structured/semantic logging? The following code produces identical XML results in the Windows Event Log:

s_logger.Information("T1: Logger test #{TestNo}", 1);
s_logger.Information("T1: Logger test #1");

Event Log XML:

<EventData>
  <Data>T1: Logger test #1</Data> 
</EventData>

I was expecting to see something granular for TestNo that would allow filtering. Or am I misunderstanding how this works?