如何查找交易状态

时间:2012-03-29 22:13:01

标签: c# asp.net transactions transactionscope

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 ,是否已成功完成?

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。

我想在以下内容后重定向: -
scope.Complete();
scope.Dispose();

请在这方面帮助我。

4 个答案:

答案 0 :(得分:10)

如果TransactionScopetry { // 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); } ,您会发现这个记录良好的示例:

scope.Complete()

包含最多值的评论是这一个:

  

Complete方法提交事务。如果抛出异常,则不调用Complete,并回滚事务。

因此,如果没有抛出异常,您可以继续。在Complete()之后重定向。如果抛出异常,则事务失败并自动回滚。您可以在致电if (Transaction.Current.TransactionInformation.Status == TransactionStatus.Committed) { // do redirect } 之后以及通过visit the MSDN page重定向之前仔细检查交易状态(正如其他人发布的那样):

{{1}}

答案 1 :(得分:3)

使用Transaction.Current.TransactionInformation.Status

Transaction.Current Property

Transaction.TransactionInformation Property

答案 2 :(得分:2)

怎么样:

TransactionStatus status = Transaction.Current.TransactionInformation.Status;

答案 3 :(得分:2)

我发现最有效/正确捕获此方法的最佳方法如下:

在transactionscope内部使用语句,并在调用scope / Complete()之前。

//Register for the transaction completed event for the current transaction
Transaction.Current.TransactionCompleted += new TransactionCompletedEventHandler(Current_TransactionCompleted);

然后按如下方式创建事件处理函数:

/// <summary>
/// Handles the TransactionCompleted event of the Current control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Transactions.TransactionEventArgs"/> instance containing the event data.</param>
static void Current_TransactionCompleted(object sender, TransactionEventArgs e)
{
    if (e.Transaction.TransactionInformation.Status == TransactionStatus.Committed)
    {
        /// Yay it's committed code goes here!
    }
}

引用MSDN

“您可以注册此事件,而不是使用volatile登记来获取事务的结果信息。传递给TransactionCompletedEventHandler委托的参数是一个Transaction实例。然后,您可以查询特定实例的TransactionInformation属性以获取实例TransactionInformation,其Status属性包含具有Committed或Aborted值的事务的状态。“