Generate Xml of Services & Behavior from Configuration code

Question

  In my wcf application ,configured service through code not by app.config.I can generate binding section xml by below code

 

file=Path.GetFileName("some path")+".exe"; 

var configuration = ConfigurationManager.OpenExeConfiguration(file);
 var contractGenerator = new ServiceContractGenerator(configuration); 

string bindingSectionName; string configurationName;   
 contractGenerator.GenerateBinding(Binding binding, out bindingSectionName, out configurationName); 
 BindingsSection bindingsSection = BindingsSection.GetSection(contractGenerator.Configuration);
 contractGenerator.Configuration.Save();
 
var xml=bindingsSection.SectionInformation.GetRawXml();

 

But cannot Generate XML of Services or Behavior as ServiceContractGenerator dont have any method like GenerateServices() or GenerateBehavior().Is their any other way to create xml of these section of app.config?