log4net SDK Reference |

# RollingFileAppender.MaxSizeRollBackups Property

Gets or sets the maximum number of backup files that are kept before the oldest is erased.

[Visual Basic]
Public Property MaxSizeRollBackups As Integer
[C#]
public int MaxSizeRollBackups {get; set;}

#### Property Value

The maximum number of backup files that are kept before the oldest is erased.

#### Remarks

If set to zero, then there will be no backup files and the log file will be truncated when it reaches MaxFileSize.

If a negative number is supplied then no deletions will be made. Note that this could result in very slow performance as a large number of files are rolled over unless CountDirection is used.

The maximum applies to each time based group of files and not the total.

#### See Also

RollingFileAppender Class | log4net.Appender Namespace