FileAppender.OpenFile Method 
      
     
    
       Sets and opens the file where the log output will go. The specified file must be writable. 
      
        [Visual Basic]
        Overridable Protected Sub OpenFile( _
   ByVal 
fileName As 
String, _
   ByVal 
append As 
Boolean _
)
 
      
      Parameters
      
        - 
          fileName
        
- The path to the log file. Must be a fully qualified path.
- 
          append
        
- If true will append to fileName. Otherwise will truncate fileName
Remarks
             If there was already an opened file, then the previous file is closed first. 
             This method will ensure that the directory structure for the fileName specified exists. 
            See Also
FileAppender Class | log4net.Appender Namespace