nlog跟踪目标仅对跟踪和调试级别有效,不适用于信息、警告、错误或致命级别。

当我使用nlog记录到跟踪目标类型时,只有当级别为 Trace Debug .如果是的话 Info Warn Error Fatal

using System;

namespace TraceLoggingTest
{
    class Program
    {
        private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();

        static void Main(string[] args)
        {
            logger.Trace("Hello Trace");
            logger.Debug("Hello Debug");
            logger.Info("Hello Info");
            logger.Warn("Hello Warn");
            logger.Error("Hello Error");
            logger.Fatal("Hello Fatal");

            Console.ReadLine();
            NLog.LogManager.Shutdown();
        }
    }
}

nlog.config配置

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd"
      autoReload="true"
      throwExceptions="false"
      internalLogLevel="Off" internalLogFile="c:\temp\nlog-internal.log">

  <targets>
    <target name="logTrace" xsi:type="Trace" layout="${message}" />
  </targets>

  <rules>
    <logger name="*" minlevel="Trace" writeTo="logTrace" />
  </rules>
</nlog>

Hello Trace
Hello Debug
Hello Info
Hello Warn
Hello Error
Hello Fatal

Hello Trace
Hello Debug
TraceLoggingTest.exe Information: 0 : Hello Info
TraceLoggingTest.exe Warning: 0 : Hello Warn
TraceLoggingTest.exe Error: 0 : Hello Error
---- DEBUG ASSERTION FAILED ----
---- Assert Short Message ----
Hello Fatal
---- Assert Long Message ----