app.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <sectionGroup name="common">
      <section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging"/>
    </sectionGroup>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>

  <!-- Log4Net configuration used for logging in files and displaying log in Visual Studio trace window.  -->
  <log4net>
    <!-- Declare appender to log to application.log file -->
    <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="application.log"/>
      <appendToFile value="true"/>
      <rollingStyle value="Size"/>
      <maxSizeRollBackups value="3"/>
      <maximumFileSize value="1MB"/>
      <staticLogFileName value="true"/>
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline"/>
      </layout>
      <filter type="log4net.Filter.LevelRangeFilter">
        <acceptOnMatch value="true"/>
        <levelMin value="INFO"/>
        <levelMax value="FATAL"/>
      </filter>
    </appender>

    <!-- Declare appender to log to Visual Studio trace window. -->
    <appender name="TraceAppender" type="log4net.Appender.TraceAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%-5level - %message%newline"/>
      </layout>
      <filter type="log4net.Filter.LevelRangeFilter">
        <acceptOnMatch value="true"/>
        <levelMin value="INFO"/>
        <levelMax value="FATAL"/>
      </filter>

    </appender>

    <root>
      <!-- Activate all appenders -->
      <level value="ALL"/>
      <appender-ref ref="RollingFileAppender"/>
      <appender-ref ref="TraceAppender"/>
    </root>
  </log4net>

  <!-- Common.Logging configuration used to declare log4net as the underlying logger.  -->
  <common>
    <logging>
      <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net1211">
        <arg key="configType" value="INLINE"/>
      </factoryAdapter>
    </logging>
  </common>

  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-1.2.13.0" newVersion="1.2.13.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6"/>
  </startup>
</configuration>