面向对象的asp编程之七--分页对象(vbscript版)

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<SCRIPT LANGUAGE=VBScript RUNAT=Server>
' ************************************************************************
' Script Compont Object Model
' Design for Active Server Pages
'
' Copyright 2004 Version 2.0
' Made by 尹曙光
' ************************************************************************
function CreateCPageNavbar()
set CreateCPageNavbar=new CPageNavbar
end function
Class CPageNavbar
   Public SplitSize '分页显示的容量
   public PnWidth
   public PnAlign
   public PlWidth '表格宽度
   public PlAlign ' 表格的对齐方式
   private PageSize
   private RecordCount '总记录数]
   private PageCount   '总页数
   private CurrentPage '当前的页码
   private SplitCount '分页的显示的总页数
   private CurrentSplit '当前的分页的分页码
'===============================================================
Private Sub Class_Initialize   ' Setup Initialize event.
          SplitSize=10
          PnWidth="100%"
          PnAlign="right"
          PlWidth="100%" //表格宽度
          PlAlign="right" // 表格的对齐方式
    PageSize=0
          RecordCount=0
          CurrentPage=1
    PageCount=1
    SplitCount=1
    CurrentSplit=1
   End Sub
   Private Sub Class_Terminate   ' Setup Terminate event.
   End Sub

   public sub InitPageNavbar(byval iPageSize,byval iRecordCount)
         PageSize=cint(iPageSize)
         RecordCount=clng(iRecordCount)
   PageCount=fix(RecordCount/PageSize)+1
   SplitCount=fix(PageCount/SplitSize)+1
   end sub

public function GetCurrentPage()
          'on error resume next
          dim pageNo
       pageNo =trim(Request.QueryString ("_Page_No_"))
          '如果没有选择第几页，则默认显示第一页；
          if ( (not IsNumeric(pageNo)) or pageNo="") then
             pageNo =1
          end if
    CurrentPage=clng(pageNo)
    if (CurrentPage<1) then
             CurrentPage=1
    end if
    if (CurrentPage>PageCount) then
             CurrentPage=PageCount
    end if
    CurrentSplit=fix(CurrentPage/SplitSize)+1
          GetCurrentPage=CurrentPage
   end function

   public function plDisplay()
       dim strBuilder,p,itmp
       strBuilder=""
      '首组为第0族
      strBuilder=strBuilder+"<table border='0' cellpadding='0' cellspacing='0' "
      strBuilder=strBuilder+" width='"&PlWidth&"' align='"&PlAlign&"'>"
      strBuilder=strBuilder+" <tr> "
      strBuilder=strBuilder+" <td valign='middle' align='right'>分页："
      if (CurrentSplit=1) then
    strBuilder=strBuilder+"<font face='webdings' color='#ff0000'>9</font> "
    strBuilder=strBuilder+"<font face='webdings' color='#ff0000'>7</font>"
      else
    strBuilder=strBuilder+"<a href='?_Page_No_=1' title='首页'><font face='webdings'>9</font></a>

"
strBuilder=strBuilder+"<a href='?_Page_No_="&cstr((CurrentSplit-2)*SplitSize)&"'

title='上"&cstr(SplitSize)&"页'><font face='webdings'>7</font></a>   "
   end if
     strBuilder=strBuilder+"<b>"
      '分页列表
   itmp=(CurrentSplit-1)*SplitSize+1
     for i=itmp to (itmp+SplitSize-1)
        if (i=CurrentPage) then
      strBuilder=strBuilder+"<font color='#000000'>"&cstr(i)&"</font> "
     else
      strBuilder=strBuilder+"<a href=?_Page_No_="&cstr(i)&" title='转到:

第"&cstr(i)&"页'>"&cstr(i)&"</a>   "
     end if
     if (i>=PageCount) then
       exit for
        end if
next
strBuilder=strBuilder+"</b>"
      '显示下十页
     if (CurrentSplit<SplitCount) then
        strBuilder=strBuilder+"<a href='?_Page_No_="&cstr((CurrentSplit)*SplitSize)&"' title='下十页

'><font face='webdings'>8</font></a> "
strBuilder=strBuilder+"<a href=?_Page_No_="&cstr(PageCount)&" title='尾页'><font

face='webdings'>:</font></a>   "
     else
     strBuilder=strBuilder+"<font face='webdings' color='#ff0000'>8</font>"
strBuilder=strBuilder+"<font face='webdings' color='#ff0000'>:</font>"
end if
     strBuilder=strBuilder+"</td></tr></table>"
     Response.Write(strBuilder)
   end function

   public function pnDisplay()
    dim strBuilder,nextPageNo
    strBuilder=""
    strBuilder=strBuilder+"<table border='0' cellpadding='0' cellspacing='0' "
    strBuilder=strBuilder+" width='"&PnWidth&"' align='"&PnAlign&"'>"
    strBuilder=strBuilder+"<tr>"
    strBuilder=strBuilder+"<td

valign='middle'>页次：[<b>"&cstr(CurrentPage)&"</b>/<b>"&cstr(PageCount)&"</b>]页

每页[<b>"&cstr(PageSize)&"</b>]条总记录数：[<b>"&cstr(RecordCount)&"</b>]条</td>"
    strBuilder=strBuilder+"<td align='right'>"
if (cint(CurrentPage)>1) then
   nextPageNo=cint(CurrentPage)-1
      strBuilder=strBuilder+"[<a href=?_Page_No_="&cstr(nextPageNo)&"

title='转到上一页'>上一页</a>]"
    end if
    if (cint(CurrentPage)<cint(PageCount)) then
      nextPageNo=cint(CurrentPage)+1
      strBuilder=strBuilder+"[<a href=?_Page_No_="&cstr(nextPageNo)&"

title='转到下一页'>下一页</a>]"
end if
strBuilder=strBuilder+"</td></tr></table>"
Response.Write(strBuilder)
end function
End Class

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