一个分页的类

分页

<%
'-------------------------------------------
' 接口：
' 属性：
' a、tip：项目提示（如，“篇文章”）；
' b、tablewidth：跳转页导航宽度
' 方法：
' a、SetRsObj（）方法：设置ADODB.RECORDSET对象；
' b、ControlPages（）方法：显示跳转页导航（“上一页”、“下一页”……）
' c、SetParams（）方法：设置参数数组
' 范例：
' dim params(1,1)
' params(0,0) = "query" : params(0,1) = request("query")
' params(1,0) = "keyword" : params(1,1) = request("keyword")
' 该数组主要传递查询关键字（如字段关键字、时间等），第一维是参数名称，第二维是参数值：如下http://…….asp?topage=2&query=yes&keyword=a
'
' set PageCtrl = new CPageCtrl
' PageCtrl.SetRsObj (RS) '设置ADODB.RECORDSET对象，其中RS是已建立好的ADODB.RECORDSET，即所要控制的记录集
' PageCtrl.tip = "篇文章"
' PageCtrl.tablewidth = "100%"
' PageCtrl.SetParams params

' PageCtrl.DimPage (15) '分页定义，每页15条记录
' PageCtrl.ControlPages() '显示跳转页导航
'-------------------------------------------

class CPageCtrl
public tip, tablewidth
private setobjflag, rsobj, pages, record, setparamsflag, current, topage
dim params()
'----------------------------------
private sub class_initialize()
tablewidth = "100%"
end sub
'---------------------------------
public function SetRsObj(obj)
set rsobj = obj
setobjflage = true
end function
'----------------------------------

private function chksetobj()
if setobjflage <> true then response.End()
end function
'----------------------------------

public function DimPage(psize) '分页定义
dim topages
topage = request("topage")

if not rsobj.eof then

if not isempty(psize) then
rsobj.pagesize = cint(psize) '定义每页显示数目
else
rsobj.pagesize = rsobj.recordcount
end if

pages = rsobj.pagecount
record = rsobj.recordcount

if topage <> empty then
topages = CInt(topage)

if topage <= 1 then
rsobj.absolutepage = 1
elseif topages >= pages then
rsobj.absolutepage = pages
else
rsobj.absolutepage = topages
end if
end if

current = rsobj.absolutepage
end if

end function
'----------------------------------

public function SetParams(arrParams())
params = arrParams
setparamsflag = true
end function

'----------------------------------

public function controlpages()
dim url

url = "http://" & request.ServerVariables("HTTP_HOST") & request.ServerVariables("URL")

if setparamsflag = true then
row = ubound(params,1)
col = ubound(params,2)
if col <> 1 then
exit function
end if

for i = 0 to row
if params(i,0) <> empty then
condition = condition & "&" & params(i,0) & "=" & params(i,1)
'生成参数
end if
next
end if

response.write "<table width='" & tablewidth & "' border='0' cellspacing='0' cellpadding='0'>"
response.write "<form action='" & url & "' method='post'>"
response.write "<tr> "
response.write "<td height='20'> 目前共有 <font color='red'><b>" & record & "</b></font> "& tip & " 当前分页状况 <font color='red'><b>" & current & "/" & pages & "</b></font></td>"

if current <> 1 then
response.write "<td width='40' align='center' height='20'>"
response.write "<a href='" & url & "?topage=1" & condition & "'>首 页</a>"
response.write "</td>"
response.write "<td width='44' align='center' height='20'>"
response.write "<a href='" & url & "?topage=" & current-1 & condition & "'>上一页</a>"
response.write "</td>"
else
response.write "<td width='40' align='center' height='20'>"
response.write "<font color='#999999'>首 页</font>"
response.write "</td>"
response.write "<td width='44' align='center' height='20'>"
response.write "<font color='#999999'>上一页</font>"
response.write "</td>"
end if

if current <> pages then
response.write