fails when working with .NET Core (V 1.0 or 1.1). We are supposed to create and use a logger from Microsoft.Extensions.Logging, but that log only appears in the dotnet.exe popup console window, not in Visual Studio's Output window.

2016年12月22日 · The solution that worked for me was using the old .NET Framework NLog method: private static readonly NLog.Logger Logger = NLog.LogManager.GetCurrentClassLogger(); Added that right to the extension method class, and I was able to write to a log ("the" log) during ConfigureServices and after.

2017年4月28日 · If you want to log to static destionation (e.g. console) Ilja's answer works, but if you want to log first to custom buffers, when each dbContext collects log messages to its own buffer (and that what you would like to do in multiuser service), then UPSSS - memory leaks (and memory leak is about 20 mb per almost empty model)...

If I have IF statement like below: If currentdate >= rating1 then status = 2 ELSEIF currentdate >= rating2 then daylight_savings_status = 0 ELSEIF currentdate >= rating3 then

Replace Console.WriteLine with your Log method. Actually, there is no need for .ToString() for the Console.WriteLine case as it accepts object . But you may need that for your Log(string msg) method.

2017年8月1日 · Built-in .NET Core console logger doesn't log date-time. Track this issue to get more details. The easiest workaround is: logger.Log(LogLevel.Information, 1, someObj, null, (s, e) => DateTime.Now + " " + s.ToString()); I wrote a custom console logger to automatically log the timestamp and do other useful tricks:

can be used in .NET Core 1.x and .NET Core 2.x / 3.x / 4.x / 5.x and .NET 6.0 - 8.0 apps. supports custom log message handler for writing logs in JSON or CSV implements simple 'rolling file' feature if max log file size is specified

2011年11月13日 · There are plenty of other examples online, of course - and .NET 4.0 will ship with one in the framework too (rather more fully featured than mine!). In .NET 4.0 you'd probably wrap a ConcurrentQueue<T> in a BlockingCollection<T>.

2015年3月29日 · Note that as per Microsoft's KB, the first 8 characters of the Event Log name must be distinct from all other Event Logs on the computer (so if the user's computer already has a log named "Application" then you cannot create a new EventLog named "Applicat1" or "ApplicationFoobar" as they share the same 8 characters as the built-in Application ...

2018年5月24日 · What worked for me in combination with serilog based on the default template of Program.cs (.NET 6.0), was nearly the same approach as the one of Leniel Maccaferri. ILogger logger = builder.Services.BuildServiceProvider().GetRequiredService<ILogger<Program>>(); logger.LogInformation("This is a testlog");