Making a newly created project configuration the active one

Hello All,

I've just added a new project configuration (based on an existing one).

                project = _applicationObject.Solution.Projects.Item(1);
                ConfigurationManager configman = project.ConfigurationManager;
                Configuration configuration = configman.ActiveConfiguration;
                cfname = configuration.ConfigurationName;
                cfname = cfname.Replace(source_config_client,destination_config_client);
                configman.AddConfigurationRow(cfname, configuration.ConfigurationName, true);