This is a patch for
LOG4NET-78 https://issues.apache.org/jira/browse/LOG4NET-78. This adds a new "connectionStringName" attribute (and corresponding ConnectionStringName) property to the AdoNetAppender class. This is a reference to a connection string within the <ConnectionStrings> section of an App.config or Web.config file.
The choice of name "connectionStringName" is consistent with the naming that Microsoft uses in the various Providers such as SqlMembershipProvider.
I made sure to put this code in between #if NET_2_0 blocks. However, the patch does not include the required change to the log4net.csproj file which needs to reference the System.Configuration.dll (C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.configuration.dll) assembly.
This is a .NET 2.0 only assembly so I was unsure how to add a conditional compilation element so that the project reference would not break log4net for .NET 1.0 and .NET 1.1.
If there is a better way to do so, please let me know!