TransactionScope类
TransactionScope类是framework2.0 新增的一个类，在System.Transactions命名空间中，使用时必须先添加System.Transactions引用；另外还要在windows控制面版-->管理工具-->服务-->Distributed Transaction Coordinator-->属性-->启动，启动这个服务.示例代码如下：
代码
try
{
using (TransactionScope scope = new TransactionScope())
{
// 更新northwind数据库的Employees表
using (SqlConnection conOne = new SqlConnection( " server=.;uid=sa;pwd=123;database=northwind " ))
{
conOne.Open();
SqlCommand command = new SqlCommand( " update Employees set lastname='chen' where employeeid='1' " , conOne);
int i = command.ExecuteNonQuery();
}
// 更新pubs数据库的jobs表
using (SqlConnection conTwo = new SqlConnection( " server=.;uid=sa;pwd=123;database=pubs " ))
{
conTwo.Open();
SqlCommand command = new SqlCommand( " update jobs set job_desc='chen' where job_id='1' " , conTwo);
int i = command.ExecuteNonQuery();
}
scope.Complete(); // 提交事物
}
}
catch (Exception ex) // 发生异常后自动回滚
{
// throw;
}
{
using (TransactionScope scope = new TransactionScope())
{
// 更新northwind数据库的Employees表
using (SqlConnection conOne = new SqlConnection( " server=.;uid=sa;pwd=123;database=northwind " ))
{
conOne.Open();
SqlCommand command = new SqlCommand( " update Employees set lastname='chen' where employeeid='1' " , conOne);
int i = command.ExecuteNonQuery();
}
// 更新pubs数据库的jobs表
using (SqlConnection conTwo = new SqlConnection( " server=.;uid=sa;pwd=123;database=pubs " ))
{
conTwo.Open();
SqlCommand command = new SqlCommand( " update jobs set job_desc='chen' where job_id='1' " , conTwo);
int i = command.ExecuteNonQuery();
}
scope.Complete(); // 提交事物
}
}
catch (Exception ex) // 发生异常后自动回滚
{
// throw;
}
转播
