C#System.InvalidOperationException:当前的TransactionScope已经完成

时间:2018-02-05 03:18:06

标签: c# sql-server exception invalidoperationexception

我在执行源代码时遇到此错误。但似乎我无法在互联网上获得太多信息。因此,我希望可以从这里的专业人士那里得到一些线索。

源代码

public List<string> GetData (List<long> Id)
{
    List<string> data;
    string sql = "select * from tblSample with(nolock) where SampleId in @sampleId";
    Dapper.DynamicParameters param = new Dapper.DynamicParameters();
    param.Add("@sampleId", Id);

    try
    {
        data = this.queryrunner.QueryList(sql, param);
    }
    catch (Exception ex)
    {
        logger.Error(ex.Message, ex);
    }

    return data;
}

QueryRunner类方法

    private void OpenConnection()
    {
        if (this.conn.State != ConnectionState.Open)
        {
            this.conn.Open();
        }
    }

    public List<t> QueryList(String sql, DynamicParameters param)
    {
        List<t> t;

        try
        {
            OpenConnection();
            t = this.conn.Query<t>(sql, param).ToList();
        }
        catch (System.Data.SqlClient.SqlException ex)
        {
            logger.Debug(ex.Message, ex);
            LogSqlErrorException(this.conn.Database, sql, param);
            throw;
        }
        finally
        {
            CloseConnection();
        }

        return t;
    }

以下是错误日志的一部分: -

  

System.InvalidOperationException:当前的TransactionScope已经完成   在System.Transactions.Transaction.get_Current()
  在System.Data.ProviderBase.DbConnectionPool.GetFromTransactedPool(交易和交易)
  at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject,UInt32 waitForMultipleObjectsTimeout,Boolean allowCreate,Boolean onlyOneCheckConnection,DbConnectionOptions userOptions,DbConnectionInternal&amp; connection)
  在System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject,TaskCompletionSource 1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource
1重试,DbConnectionOptions userOptions,DbConnectionInternal oldConnection,DbConnectionInternal&amp; connection)
  在System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection,DbConnectionFactory connectionFactory,TaskCompletionSource 1 retry, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource
1重试,DbConnectionOptions userOptions)
  在System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource 1 retry)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource
1重试)
  在System.Data.SqlClient.SqlConnection.Open()

1 个答案:

答案 0 :(得分:0)

此行OpenConnection有点嗅觉,我猜你的问题就在这里

try
{
    OpenConnection();
    ...

这会更有意义

try
{
    //OpenConnection();
    conn.Open();
    queryrunner.QueryList(sql, param)
}
finally
{
    //CloseConnection();
    conn.Close();
}

这样你就会强迫自己控制连接生命周期而不是试图变得棘手,然后在另一个环境中猜测它

  

如果你把它写成using声明它实际上更好,但我不是   确定您正在使用的框架和/或语法