Hi,

I'm using the latest version of LogViewPlus and I'm having trouble finding the right settings for a DsvParser... or even maybe I need a different one.

Here's my log data:
12399|2025-10-16T02:26:17.4405537+00:00|INFO|37|Lifetime|Application is shutting down...
12401|2025-10-16T02:26:17.4581051+00:00|DEBUG|46|Host|Hosting stopping
12403|2025-10-16T02:26:17.4718160+00:00|DEBUG|40|Host|Hosting stopped
59|2025-10-16T02:26:41.4117132+00:00|INFO|2|VirusScannerService|VirusScannerService|TestIfItIsWorking|Starting Test...
61|2025-10-16T02:26:41.4138900+00:00|INFO|2|VirusScannerService|VirusScannerService|.ctor|Starting to initialise AMSI

I use this CsvParser: %s|%d{yyyy-MM-ddT%H:mm:ss.fffffffzzzz}|%p|%t|%c|%m%n

as a workaround but the last two lines only show "VirusScannerService" as message and not the full text "VirusScannerService|TestIfItIsWorking|Starting Test..."

What I really want is to somehow tell the parser there are optional columns and the last column is the message.
So for the first three lines the parser of above works fine.
But for the last two it should be: %s|%d{yyyy-MM-ddT%H:mm:ss.fffffffzzzz}|%p|%t|%c|%S{class}|%S{method}|%m%n

Is something like this possible? Or do I have to use a different parser when some columns are missing in some lines?

May I even need to use a https://www.logviewplus.com/docs/custom_parsers.html or a https://www.logviewplus.com/docs/post_processors.html

At the moment I'm using this RegexParser as it gives me the optional columns in the message:
 (?<sequence>\d+)\|(?<date>[0-9T:\.\+\-]+)\|(?<level>[A-Z]+)\|(?<thread>\d+)\|(?<logger>[^|]+)\|(?<message>.*)$

thanks
Soko

PS: There is also the possibility the message has multiple lines like shown below. But it seems this seems to work with my current RegExParser:
449|2025-10-16T11:20:51.1474936+00:00|DEBUG|11|Query|Compiling query expression:
'DbSet<Project>()
  .Include(p => p.Users)
  .ThenInclude(pu => pu.User)
  .OrderBy(p => p.Code)'
451|2025-10-16T11:20:51.1548535+00:00|DEBUG|11|Query|Including navigation: 'Project.Users'.

Hi Toby,
and thanks for the quick reply. I thought there must be an "out of the box" way for this scenario

But the output of your solution is not completely correct. For the first three lines the message is shown in the "class" column. But the class & method column should be empty for those and i.e. "Application is shutting down..." should be in the Message column.

Is that possible?
thanks again! Soko

Hi Soko,

Thanks for highlighting this.  That appears to be an issue with the DSV parser which I will need to investigate.

In the meantime, try using the PatternParser instead.  Your configuration can remain the same - just switch the parser:





Thanks again,

Toby

Hi again. Perfect Now it works like expected. Thanks for the help.

Glad that helped - thanks for letting me know!

I have made a note to investigate the DsvParser issue before the next release.  Thanks for spotting that one.

Toby