用于DataGrid MoveUp,MoveDown的存储过程

所有逻辑都写到了存储过程中，所以在使用的时候，直接调用存储过程即可，无需在前台代码中做过多的处理，但是一定要记得在绑定的sql语句中必须有order by orderno来排序


--测试表


if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Job_Person]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)


drop table [dbo].[Job_Person]


GO




CREATE TABLE [dbo].[Job_Person] (


[Job_PersonID] [int] NOT NULL ,


[PersonID] [int] NOT NULL ,


[OrderNo] [int] NULL ,


[CreateOn] [datetime] NULL ,


[CreateByID] [int] NULL ,


[ModifyOn] [datetime] NULL ,


[ModifyByID] [int] NULL


) ON [PRIMARY]


GO




--测试存储过程


CREATE PROCEDURE tp_MoveOrder_Entity_Job


(


@Job_EntityID int ,--表主键id


@Direction INT, -- @Direction : move up : -1 , move down : 1


@UserID int --修改人id


)


AS


declare @EntityID int


declare @OrderNo INT


declare @MaxOrderNo Int




declare @OrderNo_1 int


declare @OrderNo_2 int




declare @Job_EntityID_1 int


declare @Job_EntityID_2 int




BEGIN




SET NOCOUNT ON




BEGIN




Select @OrderNo = OrderNo, @EntityID = PersonID From Job_Person


Where Job_PersonID = @Job_EntityID




select @MaxOrderNo = max(OrderNo) From Job_Person


WHERE PersonID = @EntityID




SET @OrderNo_1 = @OrderNo


SET @OrderNo_2 = @OrderNo + @Direction




if (@MaxOrderNo = 1 )


return 0 --只有一条记录则返回




if ((@OrderNo = 1 ) AND (@Direction = -1))--设置move up orderno


BEGIN




SET @OrderNo_1 = 1


SET @OrderNo_2 = @MaxOrderNo


END




if ((@OrderNo = @MaxOrderNo ) AND (@Direction = 1))--设置move down orderno


BEGIN




SET @OrderNo_1 = 1


SET @OrderNo_2 = @MaxOrderNo


END




--根据orderno取得不同的move资料


select @Job_EntityID_1= Job_PersonID from Job_Person


where PersonID = @EntityID and OrderNo = @OrderNo_2




select @Job_EntityID_2= Job_PersonID from Job_Person


where PersonID = @EntityID and OrderNo = @OrderNo_1


--update orderno


update Job_Person


set orderno = @OrderNo_1,


ModifyOn = getdate(),


ModifyByID = @UserID


where Job_PersonID = @Job_EntityID_1


IF @@ERROR <> 0


RETURN 1


--update orderno


update Job_Person


set orderno = @OrderNo_2,


ModifyOn = getdate(),


ModifyByID = @UserID


where Job_PersonID = @Job_EntityID_2


IF @@ERROR <> 0


RETURN 1


END




RETURN 0




END


GO