Create a solution with a windows application, and a class library. Add a
project reference to to the class library, and a reference to the
log4net.dll
If you run the application now, you should see something like
"2006-01-28 15:18:04,556 [3028] INFO BugApplication.MyClass [(null)] -
Hello world" in the output window.
As you can see there are three lines that are comments. One in
Program.cs and two in Class1.cs
If you uncomment the log line in Class1.cs, you will not see any output
if you try to run the application.
Now there is two different solutions to make the logging work again. You
can uncomment the log line in Program.cs, or you can uncomment the
assembly line in Class1.cs
===============================
Windows Application (Program.cs)
===============================
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace BugApplication
{
static class Program
{
//static readonly log4net.ILog log =
log4net.LogManager.GetLogger(typeof(Program));
static void Main()
{
BugClassLibrary.MyLibClass.Start(typeof(MyClass));
}
}
class MyClass : BugClassLibrary.MyInterface
{
static readonly log4net.ILog log =
log4net.LogManager.GetLogger(typeof(MyClass));
public void Start()
{
log.Info("Hello world");
}
}
}
===============================
Windows Applicaton (App.config)
===============================
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net"
type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
<appender name="ConsoleAppender"
type="log4net.Appender.ConsoleAppender" >
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level
%logger [%ndc] - %message%newline" />
</layout>
</appender>
<root>
<level value="INFO" />
<appender-ref ref="ConsoleAppender" />
</root>
</log4net>
</configuration>
===============================
Class Library (Class1.cs)
===============================
//[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace BugClassLibrary
{
public interface MyInterface
{
void Start();
}
public class MyLibClass
{
//static readonly log4net.ILog log =
log4net.LogManager.GetLogger(typeof(MyLibClass));
public static void Start(System.Type type)
{
((MyInterface)System.Activator.CreateInstance(type)).Start();
}
}
}
===============================
