----------------------------------------------------wcf事务：
1.ACID：原子性、一致性、隔离性、持久性；
2.事务：添加命名空间（using System.Transactions;）
using (TransactionScope ts = new TransactionScope())
            {
                //操作
                ts.Complete();
            }
--支持事务流的绑定：NetNamedPipeBinding,nettcpbinding,wshttpbinding,
--在绑定的配置文件;缺省为false;
<binding name="" transactionFlow="true">
--通过代码打开事务流：
  NetTcpBinding nb = new NetTcpBinding();
            nb.TransactionFlow = true;
--服务契约中：
  [TransactionFlow(TransactionFlowOption.Allowed)]
--传输协议选项：
<binding name="" transactionFlow="true" transactionProtocol="WSAtomicTransaction11">
--设置事务超时：
   <behaviors>
      <serviceBehaviors>
        <behavior name="AllenBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
   <serviceTimeouts transactionTimeout="00:20:00"/>
  </behavior>
      </serviceBehaviors>
或者是：
   [ServiceBehavior(TransactionTimeout="00:20:00")]
    public class guo : Iguo