ASP.NET中TransactionScope的问题

Question

我已经构建了一个类来同步两个不同数据源之间的数据.此同步分为多个部分(和方法).每个方法都有自己的TransactionScope,方法按顺序运行.

每次运行此代码时,我都会收到以下错误消息:

"与当前连接关联的事务已完成但尚未处理.事务必须在连接可用于执行SQL语句之前处理."

以下代码是使用TransactionScope的此类方法的示例:

private void SomeMethod()
{
        try
        {
            using (var _transactionScope = new TransactionScope(TransactionScopeOption.Required, transactionOptions))
            {
                using (SqlConnection _connection = new SqlConnection(connectionstring))
                {
                    _connection.Open();

                    DoSomething()...
                }

                _transactionScope.Complete();
            }
        }
        catch (TransactionAbortedException e)
        {
            nlog.Error(string.Format("The transaction has been aborted: {0}", e.Message));
            throw e;
        }
        catch (Exception e)
        {
            throw e;
        }
}

似乎调用"_transactionScope.Complete()"不足以杀死事务范围.有没有人知道我做错了什么？

提前致谢!

更新 感谢您的回复.经过几次测试后,我发现只有在一个方法中有多个查询时才会出现此问题.例如:

 try
    {
        using (TransactionScope _transactionScope = new TransactionScope(TransactionScopeOption.Required, transactionOptions))
        {
            using (SqlConnection _connection = new SqlConnection(connectionstring))
            {
                _connection.Open();

                //new method:
                using (TransactionScope _transactionScope = new TransactionScope(TransactionScopeOption.Suppress))
                {
                    //a selectquery
                }

                //an update or insert query

            _transactionScope.Complete();
        }
    }

Answer 1

尝试更改构造函数.

using (TransactionScope ts = new TransactionScope(TransactionScopeOption.Required,
                new TransactionOptions()
                { 
                    IsolationLevel = System.Transactions.IsolationLevel.Serializable,
                    Timeout = TimeSpan.FromSeconds(120)
                }))