Hi

It would have been grate to be able to configure the logging directory
for my application, for example, in a environment variable.

Before:
            <file value="c:/LogFiles/log4net/MyLogFile.log"/>

After:
            <file value="~/MyLogFile.log"/>

--

Best Regards
*Morten Andersen*
Developer
Vianett AS <http://www.vianett.no/> | morten@vianett.no
<mailto:morten@vianett.no> | Office: +47 69 20 69 74
<callto://+4769206974> | Skype: mortander <callto://mortander>

To use an environment variable in your configuration file try:

<file
  type="log4net.Util.PatternString"
  value="%env{LOGGINGPATH}\log.txt"
/>

cheers,
Nicko

simply try:

<file value="${TMP}\myfile.log" />


Regards,
Michael

_______________________________________
DATATRAK Deutschland GmbH
Michael Hinkel
Software Developer
Rochusstrasse 65
53123 Bonn

Tel +49 (228) 97983-602
Fax +49 (228) 97983-34
Michael.Hinkel@datatrak.net
http://www.datatrak.net
 

In addition to the other suggestions, you could do this:

public class TildaFileAppender : FileAppender
{
 public override string File
 {
  get
  {
   return base.File;
  }
  set
  {
   // replace the tilda with whatever value you want
   base.File = value.Replace(
    "~",
   AppDomain.CurrentDomain.SetupInformation.ApplicationBase);
  }
 }
}

You can also register your own patterns. The "appSettings" pattern
would get a value from AppSettings:

 <file value="%appSettings{LogDirectory}/MyLogFile.log"/>

Or you could create a pattern that gets the logging directory some
other way:

 <file value="%loggingDir/MyLogFile.log"/>