GridView 上移 下移

建一个表  t_hoteladvertise
有如下字段：
ID  自动增长(主要)
SortID  INT (主要)
Title  NVARCHAR(50)
代码:

CREATE proc sp_ehotel_DownAdvertise
@ID INT
as
DECLARE @SortID int
DECLARE @TempSortID INT
DECLARE @TempID INT
BEGIN  TRAN
SELECT @SortID=SortID  from t_hoteladvertise where [ID]=@ID
SELECT @TempSortID=max(SortID) from t_hoteladvertise where SortID>@SortID
SELECT @TempID=[ID] from t_hoteladvertise WHERE SortID=@TempSortID
if @@error>0 or @@rowcount<>1
goto NeedRollBack
UPDATE t_hoteladvertise SET SortID=@SortID WHERE [ID]=@TempID
if @@error>0 or @@rowcount<>1
goto NeedRollBack
UPDATE t_hoteladvertise SET SortID=@TempSortID where [ID]=@ID
NeedRollBack:
if @@error>0 or @@rowcount<>1
  rollback tran
else
commit tran
GO

CREATE proc sp_ehotel_UpAdvertise
@ID INT
as
DECLARE @SortID int
DECLARE @TempSortID INT
DECLARE @TempID INT
BEGIN  TRAN
SELECT @SortID=SortID  from t_hoteladvertise where [ID]=@ID
SELECT @TempSortID=max(SortID) from t_hoteladvertise where SortID<@SortID
SELECT @TempID=[ID] from t_hoteladvertise WHERE SortID=@TempSortID
if @@error>0 or @@rowcount<>1
goto NeedRollBack
UPDATE t_hoteladvertise SET SortID=@SortID WHERE [ID]=@TempID
if @@error>0 or @@rowcount<>1
goto NeedRollBack
UPDATE t_hoteladvertise SET SortID=@TempSortID where [ID]=@ID
NeedRollBack:
if @@error>0 or @@rowcount<>1
  rollback tran
else
commit tran
GO
代码段：
代码:

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        SqlConnection conn = new SqlConnection();
       if (e.CommandName == "down")
        {
            int IndexID = Convert.ToInt32(e.CommandArgument);
            try
            {
                XMLData.OpenDatabase(conn);
                XMLData.ExecuteNonQuery(conn, "SP_EHOTEL_UPADVERTISE", IndexID);
                Label2.Visible = true;
                Label2.Text = "下移成功！";

            }
            catch (Exception)
            {
                Response.Write("<script language='javascript'>alert('下移出错,点取消返回');</" + "script>");
            }
            finally
            {
                XMLData.CloseDatabase(conn);
                BindAdvertise();
            }
        }
        if (e.CommandName == "up")
        {
            int IndexID = Convert.ToInt32(e.CommandArgument);
            try
            {
                XMLData.OpenDatabase(conn);
                XMLData.ExecuteNonQuery(conn, "SP_EHOTEL_DOWNADVERTISE", IndexID);
                Label2.Visible = true;
                Label2.Text = "上移成功！";
            }

            catch (Exception)
            {
                Response.Write("<script language='javascript'>alert('上移出错,点取消返回');</" + "script>");
            }
            finally
            {
                XMLData.CloseDatabase(conn);
                BindAdvertise();
            }
        }
    }