## Serilog (C#): How to get the current MethodName, FileName/Path and LineNumber without reflection  ##
This is a simple setup for reflectionless logging with serilog using caller information (using a single static class).

See also https://stackoverflow.com/a/46905798

### Log.cs ###
Create your own ``Log.cs`` in your Root-Namespace (you can use the class below). 


This class is needed to detect from where the call is coming from; it uses [Caller-Information](https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/caller-information) to speed up the program execution, because the attributes are resolved at compiletime.



You can now also remove all ``using Serilog;``-imports - if you have any - in the classes where you want to log, because the ``Log.cs`` is everywhere in the namespace visble and easy accessible.



### Serilog-Output Template ###
Now you can use the added properties (here: ``MemberName``, ``FilePath``, ``FileName``, ``LineNumber``) in your outputTemplate:



_:warning: Note: For more performance you can remove/uncomment unused properties, here e.g. ``FilePath`` and ``LineNumber`` in ``SetContext(...)``_



### Final Example ###
OutputTemplate: `{Timestamp:HH:mm:ss,fff} {Level:u3} {FileName} [{MemberName}] {Message:lj}{NewLine}{Exception}`

```csharp
namespace Demo
{
  public class TestClass
  {
    public void TestMethod()
    {
      Log.Info("Some test");
    }
  }
}
```

Produces the following output:
``18:16:40,183 INFO TestClass [TestMethod] Some test``


### Changelog
* 2020-03-21: Tuned docs a bit; updated and reformatted the Log.cs class