log4net SDK Documentation - Microsoft .NET Framework 4.0

FileAppender.ExclusiveLock.ReleaseLock Method 

Release the lock on the file

[Visual Basic]
Overrides Public Sub ReleaseLock()
[C#]
public override void ReleaseLock();

Remarks

Does nothing. The lock will be released when the file is closed.

See Also

FileAppender.ExclusiveLock Class | log4net.Appender Namespace