log4net SDK Reference |

# AppenderSkeleton.OnClose Method

Is called when the appender is closed. Derived classes should override this method if resources need to be released.

[Visual Basic]
Overridable Protected Sub OnClose()
[C#]
protected virtual void OnClose();

#### Remarks

Releases any resources allocated within the appender such as file handles, network connections, etc.

It is a programming error to append to a closed appender.

#### See Also

AppenderSkeleton Class | log4net.Appender Namespace