先將分頁類源代碼發上來，隨後有空會發一些實例來講解其用法，以及如何擴展其功能。
類原代碼如下：
< %
'==============================================
'XDOWNPAGE ASP版本
'當前版本：2.0
'
'
'原版本 1.00
'Code by zykj2000
'Email: [email protected]
'BBS: http://bbs.513soft.net
'
'
'升級版本：1.5 (ASP + Oracle)
updated by doublel
Email：
blog： ttp://blog.csdn.Net/doublel/
'升級說明：
'
'
'升級版本：2.0 ' (ASP + Oracle) ---->當前版本
'保留原名：XDOWNPAGE
Updated by northsnow
'email: [email protected]
'blog: http://blog.csdn.net/PRecipitant
'升級說明：
'1 , 數據查詢時只查詢當前頁所包含的記錄，大大降低了數據傳輸量
'2 , 如果正常的頁導航，不用每次都查詢總記錄數，只要第一次查詢後，後來通過參數傳遞即可
'3 , 支持動態更改頁大小
'4 , 支持動態排序
'5 , 本程序只支持Oracle,如果想用在sqlserver或者其他類型的數據庫，請自行修改：Public Property Let GetSQL(str_sql)即可。
'
'
'其他程序修改者信息，請在源代碼中查對！！！
'本程序可以免費使用、修改、復制、轉載、引用，希望我的程序能為您的工作帶來方便
'但請保留以上請息,特別是是原著信息。另外如果作為商業用途，請與原著和該版本升級
'人聯系以取得許可。
'
'
'程序特點
'本程序主要是對數據分頁的部分進行了封裝，而數據顯示部份完全由用戶自定義，
'支持URL多個參數
'
'使用說明
'程序參數說明
'PapgeSize 定義分頁每一頁的記錄數
'GetRS 返回經過分頁的Recordset此屬性只讀
'GetConn 得到數據庫連接
'GetSQL 得到查詢語句
'totalRecordCount 傳遞總記錄數
'程序方法說明
'ShowPage 顯示分頁導航條,唯一的公用方法
'ShowPageSizeChange() 顯示改變頁大小的列表
'
'例:
'
' '包含文件
'
' Set mypage=new xdownpage '創建對象
' mypage.getconn=conn '得到數據庫連接
' mypage.getsql="select * from productinfo order by id asc"
' mypage.pagesize=5 '設置每一頁的記錄條數據為5條
'mypage.totalRecordCount=rsTotalCount 設置總記錄數
' set rs=mypage.getrs() '返回Recordset
'mypage.GetSubmitForm="frmQuery" ' 分頁默認提交的表單，currentpage參數
'Response.write(mypage.GetSubmitForm1()) '輸出分頁提交的函數
' mypage.showpage() '顯示分頁信息，這個方法可以，在set rs=mypage.getrs()以後
' 任意位置調用，可以調用多次
' do while not rs.eof '接下來的操作就和操作一個普通Recordset對象一樣操作
' response.write rs(0) & "
' " '這裡就可以自定義顯示方式了
' rs.movenext
' loop
'
'添加了保存當前頁面數量的提交腳本
'函數為GetSubmitForm()
'需要提交給函數GetSubmitForm一個表單名字
'在這個提交的表單裡面保存變量flag,currentpage,pagesize,rsTotalCount 四個參數
'例子如下
'flag=request("flag")
'currentpage=request("currentpage")
'currentpage=request("pagesize")
'currentpage=request("rsTotalCount")
'在提交的表單裡面加入下面四個input
'<input name="flag" type="hidden" value="< % =flag% >">
'<input name="currentpage" type="hidden" value="< % =currentpage% >">
'<input name="pagesize" type="hidden" value="< % =pagesize% >">
'<input name="rsTotalCount" type="hidden" value="< % =rsTotalCount% >">
'==============================================
Const Btn_First="<font face=""webdings"">9</font>" '定義第一頁按鈕顯示樣式
Const Btn_Prev="<font face=""webdings"">3</font>" '定義前一頁按鈕顯示樣式
Const Btn_Next="<font face=""webdings"">4</font>" '定義下一頁按鈕顯示樣式
Const Btn_Last="<font face=""webdings"">:</font>" '定義最後一頁按鈕顯示樣式
Const XD_Align="center" '定義分頁信息對齊方式
Const XD_Width="100%" '定義分頁信息框大小
Const XD_Height="20"
Class Xdownpage '類 從這裡開始
'變量定義
public int_totalPage '總頁數
public int_curcount '當前頁的記錄數
public XD_PageSize '頁大小
Private int_curpage '當前頁號
Private int_totalRecord '總記錄數
Private XD_Conn '數據庫連接對象
Private XD_Rs '記錄集對象
Private XD_SQL '主sql語句
Private XD_Count_SQL '查詢總記錄數的sql語句
Private Str_errors
Private str_URL
Private XD_sURL
Private SubmitForm '所需的查詢表單名字（隱藏表單名字）
'=================================================================
'PageSize 屬性
'設置每一頁的分頁大小
'=================================================================
Public Property Let PageSize(int_PageSize)
If IsNumeric(Int_Pagesize) Then
if clng(Int_Pagesize)>0 then
XD_PageSize=CLng(int_PageSize)
else
XD_PageSize=10
end if
Else
XD_PageSize=10
End If
End Property
Public Property Get PageSize
If XD_PageSize="" or (not(IsNumeric(XD_PageSize))) Then
PageSize=10
Else
PageSize=XD_PageSize
End If
End Property
'=================================================================
'GetRS 屬性
'返回分頁後的記錄集
'=================================================================
Public Property Get GetRs()
Set XD_Rs=Server.createobject("adodb.recordset")
'XD_Rs.PageSize=PageSize
XD_Rs.CursorLocation=3
XD_Rs.Open XD_SQL,XD_Conn,3,1
int_curcount=XD_Rs.RecordCount
if int_totalRecord="" or not isNumeric(int_totalRecord) then int_totalRecord=0 '規范化int_totalRecord的值
if int_totalRecord=0 and (int_curcount>=PageSize or int_curpage>1) then call queryRsCount() '查詢總記錄數
if err.number<>0 then
Response.Write err.Clear
end if
Set GetRs=XD_RS
End Property
'=================================================================
'queryRSCount 方法
'查詢總記錄數
'=================================================================
Public sub queryRsCount()
'下面代碼用於計算總記錄數
if XD_Count_SQL<>"" then
set rs_sqlcount=server.createobject("adodb.recordset")
rs_sqlcount.CursorLocation=3
rs_sqlcount.open XD_Count_SQL,conn,3,1
if (rs_sqlcount.eof and rs_sqlcount.bof) then
int_totalRecord=0
else
int_totalRecord=rs_sqlcount(0)
int_totalRecord=clng(int_totalRecord)
end if
rs_sqlcount.close
set rs_sqlcount=nothing
end if
End sub
'================================================================
'GetConn 得到數據庫連接
'
'================================================================
Public Property Let GetConn(obj_Conn)
Set XD_Conn=obj_Conn
End Property
'================================================================
'GetSQL 得到查詢語句
'
'================================================================
Public Property Let GetSQL(str_sql)
if (str_sql<>"") then
'根據給定查詢語句，生成最終的查詢語句（只取當前頁內容）：適用於Oracle數據庫
XD_SQL=" select * from (select rownum r_n,temptable.* from ("
XD_SQL=XD_SQL&str_sql
XD_SQL=XD_SQL&" ) temptable ) where r_n between " & cstr((int_curpage -1) * XD_PageSize +1) & " and " & cstr(int_curpage * XD_PageSize)
'查詢總記錄數的查詢語句
XD_Count_SQL="select count(*) from ("& str_sql & ")"
end if
End Property
'================================================================
'GetSubmitForm屬性 設置查詢條件的表單
'
'================================================================
Public Property Let GetSubmitForm(frmName)
SubmitForm=trim(frmName)
End Property
'================================================================
'GetSubmitForm1方法 輸出分頁導航所需腳本
'
'================================================================
public sub GetSubmitForm1()
'頁導航的Javascript函數
Response.Write " "+vrcrlf
Response.Write ("<Script language=""Javascript"">") +vbcrlf
Response.Write " function generalSubmit(i)"+vbcrlf
Response.Write " {"+vbcrlf
Response.Write " document."&SubmitForm&".flag.value=""query1111111155555"";"+vbcrlf
Response.Write " document."&SubmitForm&".currentpage.value=i;"+vbcrlf
Response.Write " "&SubmitForm&".submit();"+vbcrlf
Response.Write " }"+vbcrlf
'改變頁大小的Javascript函數
Response.Write " function changePageSize(ii)"+vbcrlf
Response.Write " {"+vbcrlf
Response.Write " document."&SubmitForm&".flag.value=""query1111111155555"";"+vbcrlf
Response.Write " document."&SubmitForm&".currentpage.value=1;"+vbcrlf
Response.Write " document."&SubmitForm&".pagesize.value=ii;"+vbcrlf
Response.Write " "&SubmitForm&".submit();"+vbcrlf
Response.Write " }"+vbcrlf
Response.Write ("</Script>")+vbcrlf
Response.Write " "+vrcrlf
end sub
'==================================================================
'totalRecordCount 屬性
'關於記錄總數
'
'==================================================================
Public Property Let totalRecordCount(int_totalRecordCount)
If IsNumeric(int_totalRecordCount) Then
int_totalRecord=CLng(int_totalRecordCount)
End If
End Property
Public Property Get totalRecordCount
If not(int_totalRecord="" or (not(IsNumeric(int_totalRecord)))) Then
totalRecordCount=int_totalRecord
End If
End Property
'==================================================================
'GetRecordCount 方法
'返回當前記錄數
'
'==================================================================
public function GetRecordCount()
GetRecordCount=int_totalRecord
end function
'==================================================================
'Class_Initialize 類的初始化
'初始化當前頁的值
'
'==================================================================
Private Sub Class_Initialize
'========================
'設定一些參數的黙認值
'========================
' XD_PageSize=10 '設定分頁的默認值為10
'========================
'獲取當前面的值
'========================
If Request("currentpage")="" Then
int_curpage=1
ElseIf not(IsNumeric(Request("currentpage"))) Then
int_curpage=1
ElseIf CInt(Trim(Request("currentpage")))<1 Then
int_curpage=1
Else
Int_curpage=CInt(Trim(Request("currentpage")))
End If
End Sub
'=============================================
'ShowPage 創建分頁導航條
'有首頁、前一頁、下一頁、末頁、還有數字導航
'
'=============================================
Public Sub ShowPage()
Dim str_tmp
XD_sURL = GetUrl()
' int_totalRecord=XD_Rs.RecordCount
If int_totalRecord<=0 Then
str_error=str_error & "總記錄數為零，請輸入數據"
Call ShowError()
End If
If int_totalRecord="" then
int_TotalPage=1
Else
'modify by wls 041215 For the right pages display---------------
If int_totalRecord mod PageSize =0 Then
int_TotalPage = CLng(int_TotalRecord \ XD_PageSize * -1)*-1
Else
int_TotalPage = CLng(int_TotalRecord \ XD_PageSize * -1)*-1+1
End If
End If
If Int_curpage>int_Totalpage Then
int_curpage=int_TotalPage
End If
'========================================================
'顯示分頁信息，各個模塊根據自己要求更改顯求位置
'========================================================
'response.write " "
str_tmp=ShowFirstPrv
response.write str_tmp
str_tmp=showNumBtn
response.write str_tmp
str_tmp=ShowNextLast
response.write str_tmp
str_tmp=ShowPageInfo
response.write str_tmp
Response.write " "
ShowGoto
End Sub
'=============================================
'ShowFirstPrv 顯示首頁、前一頁
'
'
'=============================================
Private Function ShowFirstPrv()
Dim Str_tmp,int_prvpage
If int_curpage=1 Then
str_tmp=Btn_First&" "&Btn_Prev
Elseif int_curpage=0 then
str_tmp=Btn_First&" "&Btn_Prev
else
int_prvpage=int_curpage-1
str_tmp="<a href=""#"" onclick=""Javascript:generalSubmit('1')"" alt=""第一頁"">" & Btn_First&"</a> <a href=""#"" onclick=""Javascript:generalSubmit('"&int_prvpage&"')"" alt=""前一頁"">" & Btn_Prev&"</a>"
End If
ShowFirstPrv=str_tmp
End Function
'=============================================
'ShowNextLast 下一頁、末頁
'
'
'=============================================
Private Function ShowNextLast()
Dim str_tmp,int_Nextpage
If Int_curpage>=int_totalpage Then
str_tmp=Btn_Next & " " & Btn_Last
Else
Int_NextPage=int_curpage+1
str_tmp="<a href=""#"" onclick=""Javascript:generalSubmit('"&int_nextpage&"')"" alt=""後一頁"">" & Btn_Next&"</a> <a href=""#"" onclick=""Javascript:generalSubmit('"&int_totalpage&"')"" alt=""最後一頁"">" & Btn_Last&"</a>"
End If
ShowNextLast=str_tmp
End Function
'End Function
'=============================================
'ShowNumBtn 修改後的數字導航
'
'=============================================
Function showNumBtn()
Dim i,str_tmp,end_page,start_page
start_page=1
'add by sll 2005.05.20 int_curpage=0
if int_curpage=0 then
str_tmp=str_tmp&"0"
else
if int_curpage>1 then
start_page=int_curpage
if (int_curpage<=5) then
start_page=1
end if
if (int_curpage>5) then
start_page=int_curpage-2
end if
end if
end_page=start_page+5
if end_page>int_totalpage then
end_page=int_totalpage
end if
For i=start_page to end_page
strTemp=XD_sURL & CStr(i)
str_tmp=str_tmp & "[<a href=""#"" onclick=""Javascript:generalSubmit('"&i&"')"">"&i&"</a>] "
Next
end if
showNumBtn=str_tmp
End Function
'=============================================
'ShowGoto 頁面跳轉
'頁面自動跳轉
'add by sll 2005.05.20
'=============================================
Private Function ShowGoto()
'response.write int_totalPage
dim inti
if int_totalPage<=0 then
response.write "<select name='goto' disabled>"
Response.Write "<option value='0'>0</option>"
response.write "</select>"
else
response.write "<select name='goto' onchange='Javascript:generalSubmit(this.value)'>"
for inti=1 to int_totalPage
Response.Write "<option value='"&inti&"'"
if cstr(inti)=cstr(int_curpage) then
response.write "selected"
end if
response.write" >"&inti&"</option>"
next
response.write "</select>"
end if
End Function
'=============================================
'ShowPageInfo 分頁信息
'根據要求自行修改
'
'=============================================
Private Function ShowPageInfo()
Dim str_tmp
str_tmp=" [頁次:<font color=red>"&int_curpage&"</font>/"&int_totalpage&"頁] [共"&int_totalrecord&"條] ["&XD_PageSize&"條/頁]"
ShowPageInfo=str_tmp
End Function
'=============================================
'ShowPageSizeChange 改變頁大小
'根據要求自行修改
'
'=============================================
public sub ShowPageSizeChange()
Dim str_tmp
str_tmp="頁大小：<select name='sssssPageSize' onchange='changePageSize(this.value)'>"
str_tmp=str_tmp & "<option"
if XD_PageSize=10 then str_tmp =str_tmp & " selected "
str_tmp=str_tmp & " value='10'>10</option>"
str_tmp=str_tmp & "<option"
if XD_PageSize=20 then str_tmp =str_tmp & " selected "
str_tmp=str_tmp & " value='20'>20</option>"
str_tmp=str_tmp & "<option"
if XD_PageSize=50 then str_tmp =str_tmp & " selected "
str_tmp=str_tmp & " value='50'>50</option>"
str_tmp=str_tmp & "<option"
if XD_PageSize=int_totalRecord then str_tmp =str_tmp & " selected "
str_tmp=str_tmp & " value='" & int_totalRecord & "'>all</option>"
str_tmp=str_tmp & "</select>"
response.Write str_tmp
End sub
'=============================================
'修改後的獲取當前Url參數的函數
'Codeing by Redsun
'northsnow注釋：不知道用在何處，但是保留
'=============================================
Private Function GetUrl()
Dim ScriptAddress, M_ItemUrl, M_item
ScriptAddress = CStr(Request.ServerVariables("SCRIPT_NAME"))&"?" '取得當前地址
If (Request.QueryString <> "") Then
M_ItemUrl = ""
For Each M_item In Request.QueryString
If InStr("page",M_Item)=0 Then
M_ItemUrl = M_ItemUrl & M_Item &"="& Server.URLEncode(Request.QueryString(""&M_Item&"")) & "&"
End If
Next
ScriptAddress = ScriptAddress & M_ItemUrl '取得帶參數地址
End If
GetUrl = ScriptAddress '& "page="
End Function
'=============================================
' 設置 Terminate 事件。
'=============================================
Private Sub Class_Terminate
'XD_RS.close
'Set XD_RS=nothing
End Sub
'=============================================
'ShowError 錯誤提示
'=============================================
Private Sub ShowError()
If str_Error <> "" Then
Response.Write("" & SW_Error & "")
Response.End
End If
End Sub
End class
% >
