[jira] [Resolved] (LOG4NET-316) Provide a Layout Pattern that is re-evaluated on each use

["Dominik Psenner (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4NET-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dominik Psenner resolved LOG4NET-316.
-------------------------------------

    Resolution: Fixed
      Assignee: Dominik Psenner

Added a config example with revision: 1489735
                
> Provide a Layout Pattern that is re-evaluated on each use
> ---------------------------------------------------------
>
>                 Key: LOG4NET-316
>                 URL: https://issues.apache.org/jira/browse/LOG4NET-316
>             Project: Log4net
>          Issue Type: Improvement
>          Components: Other
>    Affects Versions: 1.2.11
>            Reporter: Roy Chastain
>            Assignee: Dominik Psenner
>            Priority: Minor
>              Labels: features
>             Fix For: 1.2.12
>
>         Attachments: DynamicPatternLayout.cs
>
>
> The DynamicPatternLayout is a layout pattern that is re-evaluated on each use.  It is appropriate to use instead of LayoutPattern to provide dynamic strings in headers and footers for appenders.  Datetime is an example.  Using the standard layout pattern results in the same datetime in each header and footer, while using DynamicPatternLayout results in timestamp of the header/footer creation.
> Example
> <layout type="log4net.Layout.DynamicPatternLayout">
>   <param name="Header" value="%newline**** Trace Opened     Local: %date{yyyy-MM-dd HH:mm:ss.fff}     UTC: %utcdate{yyyy-MM-dd HH:mm:ss.fff} ****%newline"/>
>   <param name="Footer" value="**** Trace Closed %date{yyyy-MM-dd HH:mm:ss.fff} ****%newline"/>
> </layout>

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