如何在C＃中使用NLog获取程序中的日志记录日期（时间戳）

Question

I would like to obtain the date(timestamp) of my logger in a program. I configured my logger like this:

        var fileTarget = new FileTarget();
        string folder = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
        string fullPath = Path.Combine(folder, "Log.txt");

        if (!File.Exists(fullPath))
        {
            File.Create(fullPath);
        }

        fileTarget.FileName = fullPath;
        config.AddTarget("file", fileTarget);

        var fileRule = new LoggingRule("*", LogLevel.Warn, fileTarget);
        config.LoggingRules.Add(fileRule);

        LogManager.Configuration = config;

In my program, I have the following:

class Program 
{
   static Logger log = LogManager.GetCurrentClassLogger();

   static void Main(string[] args)
   {
      log.Warn("Testing");
      //How can I check the logging time here?
   }
}

I can not figure out how to do it. Any help will be appreciated

Answer 1

I know you can have that in the log file created but I would like to obtain it directly in my program and use it.

then the simplest solution would be to use DateTime.Now and log the value by hand inside the code:

class Program 
{
   static Logger log = LogManager.GetCurrentClassLogger();

   static void Main(string[] args)
   {
      log.Warn(DateTime.Now.ToString("HH:mm:ss.fff MM.dd.yyyy") + " | " + "Testing");
      //How can I check the logging time here?
      // Or if you want to have it after the logger call save it afterwards
      DateTime timeStamp = DateTime.Now;
   }
}

Answer 2

You can get access to the timestamp of the log-event if you create the NLog.LogEventInfo yourself and pass it to the logger (instead of just the string-message)

The NLog.LogEventInfo have a property called LogEventInfo.TimeStamp

http://caraulean.com/2016/timestamp-accuracy-and-resolution-in-nlog/