小编ai.*_*exe的帖子

我从实时站点收到以下错误：

System.Web.HttpUnhandledException：抛出了“System.Web.HttpUnhandledException”类型的异常。---> System.InvalidOperationException: 内部 .Net Framework 数据提供程序错误 60。在 System.Transactions.TransactionStatePSPEOperation.PSPEInitialize(InternalTransaction tx, IPromotableSinglePhaseNotification promotableSinglePhaseNotification) 的 System.Data.SqlClient.SqlDelegatedTransaction.Initialize()。 .EnlistPromotableSinglePhase(InternalTransaction tx, IPromotableSinglePhaseNotification promotableSinglePhaseNotification, Transaction atomicTransaction) at System.Transactions.Transaction.EnlistPromotableSinglePhase(IPromotableSinglePhaseNotification promotableSinglePhaseNotification) at System.Internal.DataClient

在本地我无法重现它。我不会每天都遇到这样的错误，但我需要理解并修复它。从日志中我看到它发生的那段代码是：

           var transactionOptions = new System.Transactions.TransactionOptions();
           transactionOptions.IsolationLevel = System.Transactions.IsolationLevel.ReadUncommitted;

           using (var transactionScope = new System.Transactions.TransactionScope(System.Transactions.TransactionScopeOption.Required, transactionOptions))
            {
                this.DataContext = new BMDataContext();// DataContext;
                if (patientAdmissionID != -1)
                {
                    PatientAdmission admission = queryAdmission(this.DataContext, patientAdmissionID);

                    transactionScope.Complete();
                    return admission;
                }
                transactionScope.Complete();
                return null;
            }

该方法调用 queryAdmission 使用 linq to sql 从数据库返回数据：

private static Func<BMDataContext, long, PatientAdmission> queryAdmission = System.Data.Linq.CompiledQuery.Compile( …