log4net SDK Reference |

# OnlyOnceErrorHandler Class

Implements log4net's default error handling policy which consists of emitting a message for the first error in an appender and ignoring all subsequent errors.

For a list of all members of this type, see OnlyOnceErrorHandler Members.

System.Object
log4net.Util.OnlyOnceErrorHandler

[Visual Basic]
Public Class OnlyOnceErrorHandler
Implements IErrorHandler
[C#]
public class OnlyOnceErrorHandler : IErrorHandler

#### Thread Safety

This type is not safe for multithreaded operations.

#### Remarks

The error message is printed on the standard error output stream.

This policy aims at protecting an otherwise working application from being flooded with error messages when logging fails.

#### Requirements

Namespace: log4net.Util

Assembly: log4net (in log4net.dll)

#### See Also

OnlyOnceErrorHandler Members | log4net.Util Namespace