今天遇到个表态的问题！使用带事务的存储过程执行sql语句，看数据库里面插入更新都正常！ 但是返回值一直为-1！ 头那个大哦！先贴2个存储过程吧！看大侠们能否找到问题的存在
USE [My_DB]
GO
/****** Object: StoredProcedure [dbo].[UpdatePointByUser] Script Date: 03/29/2010 16:06:23 ******/
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
-- =============================================
-- Author:jinho
-- Create date: 2010年3月22日16:13:06
-- Description: 修改用户的点数 [Point]
-- =============================================
CREATE PROCEDURE [dbo].[UpdatePointByUser]
@point int = 0,
@uid int =0
AS BEGIN
SET NOCOUNT ON;
declare @error int ;
set @error = 0;
begin tran
update UserInfo set Point = Point + @point where Id = @uid;
set @error = @error+@@error ;
if(@error=0)
commit tran ;
else
rollback tran ;
END
//////////////////////////////////////////////////////////////
USE [My_DB]
GO
/****** Object: StoredProcedure [dbo].[AddAnnouncement] Script Date: 03/29/2010 15:43:51 ******/
SET ANSI_NULLS ON GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[AddAnnouncement]
@ATitle nvarchar(max) ='',
@ACreateTime datetime ='',
@AWhere nvarchar(max) = '',
@AUserId int =0,
@point int =0
AS BEGIN
SET NOCOUNT ON;
declare @error int ;
set @error = 0;
begin tran
insert into Announcements values(@ATitle,@ACreateTime,@AWhere,@AUserId);
set @error = @error+@@error;
exec UpdatePointByUser @point,@AUserId
set @error = @error+@@error;
if(@error=0) commit tran ;
else rollback tran;
END
-- Test
declare @rev int
exec [AddAnnouncement] 'mytest','2008-05-09','ChengDu',13,100
print @rev;
print @@ROWCOUNT
这里测试 @rev,@@ROWCOUNT 都为0;
C#后台代码测试：
代码
1 public bool AddAnnouncement(Model announcement)
2 {
3 SqlConnection con = null;
4 SqlCommand cmd = null;
5 int row = 0;
6 SqlParameter[] paras = {
7 new SqlParameter("@ATitle", announcement.ATitle),
8 new SqlParameter("@ACreateTime", announcement.ACreateTime),
9 new SqlParameter("@AWhere", announcement.AWhere),
10 new SqlParameter("@AUserId", announcement.AUserId),
11 new SqlParameter("@point", 1) };
12 try
13 {
14 using (con = new SqlConnection(DBHelper.DefaultConnectionString))
15 {
16 con.Open();
17 using (cmd = new SqlCommand("[AddAnnouncement]", con))
18 {
19 cmd.CommandType = CommandType.StoredProcedure;
20 cmd.Parameters.AddRange(paras);
21 row = cmd.ExecuteNonQuery();
22 return row > 0;
23 }
24 }
25 }
26 catch (Exception ex) { throw ex; }
27 finally
28 {
29 if (con != null) con.Close();
30 }
31 }
上面代码的Row返回为-1！ 但是我去数据库看,执行存储过程的两条语句都成功了！
嘿嘿：注意看到上面的存储过程的“SET NOCOUNT ON;”这句代码！就是他在作怪！他的意思为 “开启设置不影响的行数”！
你只要 把SET NOCOUNT OFF即可！ 当然也可以不写!因为默认为OFF!如果你看到默认为ON时请修改为OFF！
OK！[也许这个问题本身不变态,只是我的技术不到位,:)]
