None of the NLog AspNetRequest layour renderers are working for ASP.NET 4.6 web forms app-CodePudding

I am not getting any values for the AspNetRequest layout renderers in an ASP.NET 4.6.2 Framework Web Forms app.

https://github.com/NLog/NLog/wiki/AspNetRequest-layout-renderer

All three of the following and several others that I have tried are all empty strings. Is there some global switch I need to enable within NLog to get these to work?

dbTarget.Parameters.Add(new DatabaseParameterInfo("@VisitedPage", "${aspnet-request-host}"));
dbTarget.Parameters.Add(new DatabaseParameterInfo("@PageURL", "${aspnet-appbasepath}"));
dbTarget.Parameters.Add(new DatabaseParameterInfo("@ReferrerURL", "${aspnet-request:header=Referer}"));

CodePudding user response：

NLog v5 no longer automatically scan and load extension assemblies. This means NLog.Web-LayoutRenderers are not available by default.

Instead one have manually register NLog.Web extensions. This can be done in NLog.config:

<extensions>
   <add assembly="NLog.Web" />
</extensions>

Or it can also be done from code (before starting to build dbTarget):

LogManager.Setup().RegisterNLogWeb()