C#使用事务

using (SqlConnection conn = new SqlConnection(Connstring)
{
conn .Open();

// 开启一个事务
SqlTransaction sqlTran = conn .BeginTransaction();

// Enlist a command in the current transaction.
SqlCommand command = conn .CreateCommand();
//begin transaction
command.Transaction = sqlTran;

try
{
// 执行sql语句
command.CommandText ="xxxxx";
command.ExecuteNonQuery();

command.CommandText ="yyyyyy"；
command.ExecuteNonQuery();

// 提交
sqlTran.Commit();
}
catch (Exception ex)
{
// 执行失败回滚操作.
lblMsg.Text = ex.Message;

try
{
// 回滚.
sqlTran.Rollback();
}
catch (Exception exRollback)
{
// 异常
lblMsg.Text = exRollback.Message;

}
}
}