static void Main(string[] args)
        {
            bool bMethod1 = Metthod1();
            bool bMethod2 = Metthod2();
            bool bMethod3 = Metthod3();

            if (!bMethod1 || !bMethod2 || !bMethod3)
            {
                //RollBack
            }
        }

static void Main(string[] args)
    {
        using (TransactionScope scope = new TransactionScope())
        {

            bool bMethod1 = Metthod1();
            bool bMethod2 = Metthod2();
            bool bMethod3 = Metthod3();

            if (!bMethod1 || !bMethod2 || !bMethod3)
            {
                //RollBack
                Transaction.Current.Rollback();
            }
            if (Transaction.Current.TransactionInformation.Status == TransactionStatus.Committed)
            {
                scope.Complete();
            }
        }
    }