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實(shí)例一：分頁(yè)顯示及導(dǎo)航：
為什么我要再提分頁(yè)的這個(gè)問(wèn)題呢？因?yàn)檫@是一個(gè)最基本的問(wèn)題，雖然有很多關(guān)于分頁(yè)的文章，但我覺(jué)得他們的方法偏于復(fù)雜。其實(shí)RecordSet的AbsolutePage就可以輕松的實(shí)現(xiàn)分頁(yè)，當(dāng)你指定了PageSize屬性后，對(duì)AbsolutePage指定值就可以翻轉(zhuǎn)到指定的頁(yè)面。但是如果你想使用AbsolutePage的話，你必須在打開(kāi)RecordSet對(duì)象之前將它的CursorLocation值設(shè)為adUseClient，這個(gè)屬性是繼承Connection對(duì)象的一個(gè)相同屬性的。你也可以在打開(kāi)Connection對(duì)象之前來(lái)設(shè)定它。下面是源代碼，為了方便，我將導(dǎo)航欄獨(dú)立成了一個(gè)子程序方便大家使用。
<%
sub navigator(PageNo,Target)
Response.Write "<table border=0>"
Response.Write "<tr>"
Response.Write "<td>"
if PageNo>1 then
Response.write "<a href="&chr(34)&Target&"?Page=1"&chr(34)&">┃第一頁(yè)</a>"
else
Response.Write "┃第一頁(yè)"
end if
Response.Write "</td>"
Response.Write "<td>"
if PageNo<rs.PageCount then
Response.write"<a href="&chr(34)&Target&"?Page="&PageNo+1&chr(34)&">┃下一頁(yè)</a>"
else
Response.Write "┃下一頁(yè)"
end if
Response.Write "</td>"
Response.Write "<td>"
if PageNo>1 then
Response.write "<a href="&chr(34)&Target&"?Page="&PageNo-1&chr(34)&">┃前一頁(yè)</a>"
else
Response.Write "┃前一頁(yè)"
end if
Response.Write "</td>"
Response.Write "<td>"
if PageNo<rs.PageCount then
Response.write "<a href="&chr(34)&Target&"?Page="&rs.PageCount&chr(34)&">┃最后一頁(yè)</a>"
else
Response.Write "┃最后一頁(yè)"
end if
Response.Write "</td>"
Response.Write "<td>"
Response.Write "┃頁(yè)次:"&PageNo&"/"&rs.PageCount&"頁(yè)┃"&rs.PageSize&"條記錄/頁(yè)┃"
Response.Write "</td>"
Response.Write "<td valign="middle">"
Response.Write "<form action="&chr(34)&Target&chr(34)&" method="&chr(34)&"POST"&chr(34)&">"
Response.Write "<input type="text"size=3 maxlength=4 name="Page">"
Response.Write " <input type="submit"value="轉(zhuǎn)到">"
Response.Write "</form>"
Response.Write "</td>"
Response.Write "</tr>"
Response.Write ""
end sub
%>
<%
const adCmdText=&H0001
const adVarChar=200
const adInteger=3
const adParamInput=&H0001
const adCmdTable=&H0002
const adUseClient=3
const adDate=7
const adLongVarChar=201
set conn=Server.CreateObject("ADODB.Connection")
conn.ConnectionString="Driver={Microsoft Access Driver (*.mdb)};DBQ="& _
Server.Mappath("/source_asp")&"/process/process.mdb;"
conn.Open
%>
<%
const MaxPageSize=5
%>
<html>
<head>
<title> See Book </title>
</head>
<body>
<%
dim i,j,PageNo
set rs=Server.CreateObject("ADODB.RecordSet")
rs.ActiveConnection=conn
rs.CursorLocation=adUseClient
rs.Open "Select * From books",,,adCmdText
if rs.BOF then
Response.Write "歡迎使用圖書,資料管理程序!"
else
rs.PageSize=MaxPageSize
if isempty(Request.QueryString("Page")) then
PageNo=1
elseif cInt(Request.QueryString("Page"))<1 then
PageNo=1
elseif cInt(Request.QueryString("Page"))>rs.PageCount then
PageNo=rs.PageCount
else
PageNo=cInt(Request.QueryString("Page"))
end if
if Request.ServerVariables("Request_Method")="POST" and not Isempty(Request.Form("Page")) then
PageNo=cInt(Request.Form("Page"))
end if
rs.AbsolutePage=PageNo
Response.Write "<table border="0" width="100%">"
Response.Write "<tr><td colspan="&rs.fields.count&">"
Target="books.asp"
call navigator(PageNo,Target) "調(diào)用導(dǎo)航欄
Response.Write "</td></tr>"
Response.Write "<tr>"
for i=0 to rs.fields.count-1
Response.Write "<td>"&rs.fields.item(i).name&"</td>"
next
Response.Write "</tr>"
j=0
while (not rs.EOF) and j<rs.PageSize
Response.Write "<tr>"
for i=0 to rs.fields.count-1
if i=1 then
Response.Write "<td>"&"<a href="&chr(34)&"status.asp?BookName="& _
rs.fields.item(i).value&chr(34)&">"&rs.fields.item(i).value&"</a></td>"
"這里這樣寫是為了級(jí)聯(lián)式查詢而做的。
else
Response.Write "<td>"&rs.fields.item(i).value&"</td>"
end if
next
Response.Write "</tr>"
rs.MoveNext
j=j+1
wend
Response.Write ""
end if
%>
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