asp.net使用事务

1、SqlServer存储过程 的事务处理 方法一： --测试的表   create   table   tb(   id   int     not   null     constraint   PK_sys_zj_fielddict   primary   key   ,aa   int)   --事务处理   begin   tran   insert   into   tb   values(1,1)   if   @@error<>0   goto   lb_rollback   insert   into   tb   values(1,1)   if   @@error<>0   goto   lb_rollback   insert   into   tb   values(2,1)   if   @@error<>0   goto   lb_rollback   insert   into   tb   values(2,1)   if   @@error<>0   goto   lb_rollback   insert   into   tb   values(3,1)   if   @@error<>0   goto   lb_rollback   lb_commit:   commit   tran   goto   lb_ok   lb_rollback:   rollback   tran   --显示结果   lb_ok:   select   *   from   tb   drop   table   tb 方法二： -- 创建测试表   create   table   tb(   id   int     not   null     constraint   PK_sys_zj_fielddict   primary   key   ,aa   int)   --设置选项   SET   XACT_ABORT   on   --事务处理   begin   tran   insert   into   tb   values(1,1)   insert   into   tb   values(1,1)   insert   into   tb   values(2,1)   commit   tran   --显示结果   /*--------注意   如果这样写的话,后面的语句不会被执行,如果要执行后面的语句,要在这句后面加上GO,仅查询分析分析器支持,所以如果是在存储过程中,要保证 commit   tran后面没有其他语句,否则出错时,其他语句不会被执行   -----------*/   select   *   from   tb   drop   table   tb   2、.Net中使用事务处理 SqlConnection myConnection = new SqlConnection("Data Source=localhost;Initial Catalog=Northwind;Integrated Security=SSPI;"); myConnection.Open(); SqlTransaction myTrans = myConnection.BeginTransaction(); //使用New新生成一个事务 SqlCommand myCommand = new SqlCommand(); myCommand.Transaction = myTrans; myCommand.Connection=myConnection; try { myCommand.CommandText = "Update Address set location='23 rain street' where userid='0001'"; myCommand.ExecuteNonQuery(); myCommand.CommandText = "Update table2 set dd='23 rain street' where userid='0001'"; myCommand.ExecuteNonQuery(); myTrans.Commit(); Console.WriteLine("Record is udated."); } catch(Exception e) { myTrans.Rollback(); Console.WriteLine(e.ToString()); Console.WriteLine("Sorry, Record can not be updated."); } finally { myConnection.Close(); }   3.含有DataTable       /// <summary> /// 删除网上商城商家 /// </summary> /// <param name="shopID"></param> /// <returns></returns> public int del_netShop(string shopID) { int res = 0; if (conn.State == ConnectionState.Closed) { conn.Open(); } SqlTransaction trans = conn.BeginTransaction(); cmd.Connection = conn; cmd.Transaction = trans; try { cmd.CommandText = "update shop_newsList set psid=NULL where shopID=" + shopID; cmd.ExecuteNonQuery(); DataTable dt = new DataTable(); cmd.CommandText = "select id,shopID from shop_proBsort1 where shopID=" + shopID; dr = cmd.ExecuteReader(); dt.Load(dr);//使用fill方法会报事务未初始化 for (int i = 0; i < dt.Rows.Count; i++) { cmd.CommandText = "delete from shop_proBsort2 where aid=" + dt.Rows[i]["id"].ToString(); cmd.ExecuteNonQuery(); } cmd.CommandText = "delete from shop_proBsort1 where shopID=" + shopID; cmd.ExecuteNonQuery(); trans.Commit(); res = 1; } catch { trans.Rollback();//回滚 } finally { conn.Close(); trans.Dispose(); conn.Dispose(); } return res; } 说明：在SqlServer中，每条Sql语句都作为一个事务 来执行，所以无论在存储过程，还是在.net代码中使用，执行单条Sql语句没有必要使用事务处理