I had a similar problem about a year back, ended up subclassing
AdoNetAppenderParameter and overriding the FormatValue method as below:
public class MyAdoNetAppenderParameter : AdoNetAppenderParameter
{
/// <summary>
/// Custom version of FormatValue method which also converts NullText
value (null) to DBNull
/// </summary>
/// <param name="command"></param>
/// <param name="loggingEvent"></param>
public override void FormatValue(System.Data.IDbCommand command,
log4net.Core.LoggingEvent loggingEvent)
{
// Lookup the parameter
IDbDataParameter param =
(IDbDataParameter)command.Parameters[ParameterName];
// Format the value
object formattedValue = Layout.Format(loggingEvent);
// If the value is null then convert to a DBNull
if ((formattedValue == null) || (formattedValue.ToString() ==
SystemInfo.NullText))
{
formattedValue = DBNull.Value;
}
param.Value = formattedValue;
}
}
This can be intergrated with any other changes to your existing logging
code and only one minor change to the config file - set the type of the
parameter to that of your new class above.
Hope this helps.
Is there a better or recommended way of doing this?
-----bolikdimon <[EMAIL PROTECTED]> wrote: -----
To: [email protected]
From: bolikdimon <[EMAIL PROTECTED]>
Date: 01/08/2007 01:02PM
Subject: AdoNetAppender problem.
Hello. Help me please.
I'm using AdoNetAppender. How can I pass NULL value into stored procedure ?
Here is my code:
...
ThreadContext.Properties["ProcessID"] = DbNull.Value;
log.Debug(message);
Config-file:
<parameter>
<parameterName value="@ProcessID" />
<dbType value="Int64" />
<layout type="log4net.Layout.PatternLayout" value="%X{ProcessID}" />
</parameter>
What's wrong ?
--
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