gistfile1.cs

    public class DataAccessInstaller:IWindsorInstaller
    {
        public void Install(IWindsorContainer container, IConfigurationStore store)
        {
            container.Kernel.ComponentModelBuilder.AddContributor(new SubmitChangesDataContextContributor());
            container.Register(Component.For<DataDataContext>()
                                   .LifeStyle.PerWebRequest
                              // some other components
                              );
        }
    }

    public class SubmitChangesDataContextContributor : IContributeComponentModelConstruction
    {
        public void ProcessModel(IKernel kernel, ComponentModel model)
        {
            if (typeof (DataContext).IsAssignableFrom(model.Implementation))
            {
                // first so that it runs before DisposalConcern
                model.LifecycleSteps.AddFirst(LifecycleStepType.Commission, new SubmitChangesConcern());
            }
        }
    }


    public class SubmitChangesConcern : ILifecycleConcern
    {
        public void Apply(ComponentModel model, object component)
        {
            using (var scope = new TransactionScope())
            {
                var dataContext = (DataContext) component;
                dataContext.SubmitChanges();
                scope.Complete();
            }
        }
    }