[ 
http://issues.apache.org/jira/browse/LOG4NET-31?page=comments#action_65769 ]
     
Ron Grabowski commented on LOG4NET-31:
--------------------------------------

When I try this snytax:

 <converter>
  <name value="user-converter" />
  <type value="Company.Project.Logging.UserConverter, Company.Project" />
  <address value="HomeAddress" />
 </converter> 

I get the following error:

log4net:ERROR XmlHierarchyConfigurator: Cannot find Property [address] to set 
object on [log4net.Layout.PatternLayout+ConverterInfo]

> Allow user to pass in additional parameters to <converter> node via some kind 
> of <property> tag
> -----------------------------------------------------------------------------------------------
>
>          Key: LOG4NET-31
>          URL: http://issues.apache.org/jira/browse/LOG4NET-31
>      Project: Log4net
>         Type: Improvement
>     Reporter: Ron Grabowski
>     Priority: Minor

>
> It would be useful if the user was able to supply additional properties to 
> the <convert> tag in the form of:
>  <property name="foo" value="bar" />
>  <property name="Hello" value="World" />
> The code below uses a <property> node to determine if the HomeAddress or the 
> WorkAddress will appear in the log message. If the parameter is not present, 
> the converter prints a default value.
>  <converter>
>   <name value="user-converter" />
>   <type value="Company.Project.Logging.UserConverter, Company.Project" />
>   <property name="Address" value="HomeAddress" />
>  </converter>
>  <conversionPattern value="%p %d %user-converter{Nicko} - %m%n" />
> The <property> tags would be accessible via a Properties IDictionary. It 
> would allow the converter to perform additional logic on the base.Option that 
> was passed in:
>  public class MyConverter : PatternConverter
>  {
>   override protected void Convert(TextWriter writer, object state) 
>   {
>    User user = GetUserByUserName(base.Option);
>    string address = base.Properties["Address"] as string;
>    if (address != null && address.Length > 0)
>    {
>     if (user != null)
>     {
>      switch (address)
>      {
>       case "HomeAddress": writer.Write(user.HomeAddress); break;
>       case "WorkAddress": writer.Write(user.WorkdAddress); break;
>      }
>     }
>     else
>     {
>      // ???
>     }
>    }
>    else
>    {
>     // default display
>     writer.Write(user.HomeAddress); break;   
>    }
>   }
>  }

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