log4net SDK Reference |

# RollingFileAppender.RollFile Method

Renames file fromFile to file toFile.

[Visual Basic]
Protected Sub RollFile( _
ByVal fromFile As String, _
ByVal toFile As String _
)
[C#]
protected void RollFile(
string fromFile,
string toFile
);

#### Parameters

fromFile
  Name of existing file to roll.
toFile
  New name for file.

#### Remarks

Renames file fromFile to file toFile. It also checks for existence of target file and deletes if it does.

#### See Also

RollingFileAppender Class | log4net.Appender Namespace