asp的通用数据分页类(6)

        '取得页的总数
        If Record_Count Mod Page_Size <>0 Then
            TopMod=Record_Count Mod Page_Size
            Page_Count=Fix(Record_Count/Page_Size)+1
            If Cur_Page<Page_Count Then
                TopMod=Page_Size
            End If
        Else
            TopMod=Page_Size
            Page_Count=Fix(Record_Count/Page_Size)
        End If
        If Cur_Page>Page_Count Then Cur_Page=Page_Count
        If Cur_Page<1 Then Cur_Page=1
        If Trim(List_Fields)="" Then List_Fields="*"
        TSQL="Select * From (Select Top "&TopMod&" * From (Select Top "&(Cur_Page*Page_Size)&" "&List_Fields&" From ["&Table_Name&"] "&sWhere&" Order By "&OrderBy_SQL&") Order By "&TransformOrder(OrderBy_SQL)&")Order By "&OrderBy_SQL
        Set Rs=Connection.Execute(TSQL)
        If Err Then
            Err.Clear
            Set Execute=Nothing
            Record_Count=0
            Page_Count=0
            Exit Function
        End If
        Set Execute=Rs
    End Function

    '转换OrderBy的顺序 ASC->DESC   DESC->ASC
    Private Function TransformOrder(ByVal Value)
        If Value="" Then
            TransformOrder=""
            Exit Function
        End If