Here is a complete step-by-step guide to adding Log4Net to your project, under Visual Studio 2012 and .NET 4.5. Add a new C# console app to your solution. Select Tools >> Library Package Manager >> Manage NuGet Packages For Solution and search for log4net. Install it, and select which project(s) you want to add the … Read more
Open your project file (.csproj in C# or .vbproj in VB.NET) for editing. Make sure the log4net reference is Fully Qualified Type Name, has HintPath and SpecificVersion=True. <Reference Include=”log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL”> <HintPath>..\references\log4net.dll</HintPath> <SpecificVersion>True</SpecificVersion> </Reference> Save the file and try to rebuild.
There are many similar questions here on SO: Logging best practices log4net versus TraceSource Silverlight Logging framework and/or best practices log4net vs. Nlog What’s the point of a logging facade? C# Logging. What should I use? You missed several commonly used logging frameworks. Here is a list of commonly used frameworks, some of which you … Read more
This can be done using the threshold or filter elements within the appender. Note that the threshold can be directly under the appender, where it acts as an inclusive filter, or under a evaluator e.g. <evaluator type=”log4net.Core.LevelEvaluator”> <threshold value=”ERROR”/> </evaluator> where it acts as an inclusive filter for skipping buffering (immediate output), where applicable. Full … Read more
Give the following code in your application before you put your logging code: log4net.Config.XmlConfigurator.Configure(); You can define it in Global.asax: void Application_Start(object sender, EventArgs e) { // Code that runs on application startup // Initialize log4net. log4net.Config.XmlConfigurator.Configure(); } You can also add the following line as Kevin advised (either mentioning your config file name or … Read more
The Remarks section of the log4net.Layout.PatternLayout class in the Apache Log4Net SDK documentation looks to have what we want: http://logging.apache.org/log4net/release/sdk/?topic=html/T_log4net_Layout_PatternLayout.htm
It is possible to use a DB connection string specified in web.config without creating a new class, though you would need to use log4net build that hasn’t been released yet. It can be downloaded from SVN repository http://svn.apache.org/viewvc/logging/log4net/trunk/ Your config will look as follows: <connectionStrings> <add name=”connStr” connectionString=”Data Source=localhost; …” /> </connectionStrings> <log4net> <appender name=”AdoNetAppender” … Read more
You can use the pre-populated property log4net:HostName, for example: <conversionPattern value=”%property{log4net:HostName}” /> This way you don’t need to populate the MDC.
Logging is the generic term for recording information – tracing is the specific form of logging used to debug. In .NET the System.Diagnostics.Trace and System.Diagnostics.Debug objects allow simple logging to a number of “event listeners” that you can configure in app.config. You can also use TraceSwitches to configure and filter (between errors and info levels, … Read more
I assume that the application should create only one log file every time it runs, so you do not need a rolling file appender (though my solution would apply for rolling file appenders as well): <appender name=”FileAppender” type=”log4net.Appender.FileAppender”> <file type=”log4net.Util.PatternString” value=”c:\temp\App-%date{yyyy-MM-dd_HH-mm-ss}.log” /> <appendToFile value=”true” /> <layout type=”log4net.Layout.PatternLayout”> <conversionPattern value=”%date [%2thread] %-5level – %message%newline” /> </layout> … Read more