如何查找交易状态

Question

我正在使用'TransactionScope',我需要在C#代码中做一些DML,我已经成功了.

我需要找出交易的状态是什么,即它是否成功完成？

因为在事务状态的基础上,如果事务完成,那么我需要执行重定向到另一个页面,否则如果事务未成功完成,那么我需要在页面上显示错误.

我想在以下后面重定向: -
scope.Complete();
scope.Dispose();

在这方面请帮助我.

Answer 1

如果你访问MSDN页面的TransactionScope,你会发现这充分证明例如:

try
{
    // Create the TransactionScope to execute the commands, guaranteeing
    // that both commands can commit or roll back as a single unit of work.
    using (TransactionScope scope = new TransactionScope())
    {
        using (SqlConnection connection1 = new SqlConnection(connectString1))
        {
            // Opening the connection automatically enlists it in the 
            // TransactionScope as a lightweight transaction.
            connection1.Open();

            // Create the SqlCommand object and execute the first command.
            SqlCommand command1 = new SqlCommand(commandText1, connection1);
            returnValue = command1.ExecuteNonQuery();
            writer.WriteLine("Rows to be affected by command1: {0}", returnValue);

            // If you get here, this means that command1 succeeded. By nesting
            // the using block for connection2 inside that of connection1, you
            // conserve server and network resources as connection2 is opened
            // only when there is a chance that the transaction can commit.   
            using (SqlConnection connection2 = new SqlConnection(connectString2))
            {
                // The transaction is escalated to a full distributed
                // transaction when connection2 is opened.
                connection2.Open();

                // Execute the second command in the second database.
                returnValue = 0;
                SqlCommand command2 = new SqlCommand(commandText2, connection2);
                returnValue = command2.ExecuteNonQuery();
                writer.WriteLine("Rows to be affected by command2: {0}", returnValue);
            }
        }

        // The Complete method commits the transaction. If an exception has been thrown,
        // Complete is not  called and the transaction is rolled back.
        scope.Complete();

    }

}
catch (TransactionAbortedException ex)
{
    writer.WriteLine("TransactionAbortedException Message: {0}", ex.Message);
}
catch (ApplicationException ex)
{
    writer.WriteLine("ApplicationException Message: {0}", ex.Message);
}

包含最多值的注释是这一个:

Complete方法提交事务.如果抛出异常,则不会调用Complete并回滚事务.

因此,如果没有抛出异常,您可以继续.放下你的重定向scope.Complete().如果抛出异常,则事务失败并自动回滚.您可以在调用之后Complete()和重定向之前仔细检查交易状态(正如其他人发布的那样),通过Transaction.Current.TransactionInformation.Status:

if (Transaction.Current.TransactionInformation.Status == TransactionStatus.Committed) 
{
    // do redirect
}