提交事务后获取事务ID

Question

我正在从事务作用域中使用IEnlistmentNotification接口，并且要在作用域完成后像下面这样在commit方法中访问当前事务ID：

public void Commit(Enlistment enlistment)
{     
    string transactionId = Transaction.Current.TransactionInformation.LocalIdentifier;
    enlistment.Done();
} 

但是我收到一个错误，因为现在transaction.current为null。 从我检查的结果来看，征募实例具有transactionId的私有成员，但由于他的保护级别而无法访问它。

范围完成后，还有另一种获取交易ID的方法吗？

Answer 1

        using (TransactionScope scope = new TransactionScope())
        {
            using (YourContext context = new YourContext())
            {
                //DB operations
                context.SaveChanges();
            }
            Transaction.Current.TransactionCompleted += Current_TransactionCompleted;
            TransactionInformation info = Transaction.Current.TransactionInformation;
            string transactionId = Guid.Empty.Equals(info.DistributedIdentifier) ? info.LocalIdentifier : info.DistributedIdentifier.ToString();
            scope.Complete();
        }

        //For the transaction completed event:
        private void Current_TransactionCompleted(object sender, TransactionEventArgs e)
        {
             //e.Transaction.TransactionInformation contains the Id
        }