using System;

using System.Transactions;

namespace Demo

{

    module Program

    {

        Main() : void

        {

            using (trans = TransactionScope())

            {

                // Do some stuff in a transaction

                // ...

                // Remember to call Complete when finished!

                trans.Complete();

            }

        }

    }

}

using System;

using System.Transactions;

using SampleMacros;

namespace Demo

{

    module Program

    {

        Main() : void

        {

            transaction 

            {

                // Do some stuff in a transaction

                // ...

            }

        }

    }

}

using System;

using System.Transactions;

namespace SampleMacros

{

    public macro transaction(block) syntax ("transaction", block)

    {

        <[ 

            using (t = TransactionScope()) {

                $block;

                t.Complete();

            }

        ]>

    }

}