面向对象的asp编程之七--分页对象(vbscript版)

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@# ************************************************************************
@# 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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