技术资料 > ASP技术 > ASP应用 : 分页显示的例子（显示记录背景色替换变化）

分页显示的例子（显示记录背景色替换变化）

March 25,2004

Code Title: Paging (modifiable)
Description: Add paging to your record retrieval. But, do it with the good'ol form field that allows you
to just type in directly what page ya wanna go to. This one is our fave! It even alternates the background
color (bgcolor) of each row, to make viewing the recordset even easier.. We use different tweaked versions
of this one all over our site! See an example of this code snippet on our International page.

We have made it so that it will display a hyperlinked first item in one column, then a truncated
description using the Left() function in the next column. The hyperlink will take you to the specific
article or record, (whatever you're using it for).

We use a javascript valid number checker on this one, just to make sure the person doesn't enter any weird
characters into the page number field of the form. We don't normally do this, but if ya want the
javascript for number checking, check out our jsNumberValidator.
Copy and paste this snippet as-is into your editor:

<%
Const adUseClient = 3
Const adOpenStatic = 3
specific = Request.QueryString("specific")
If specific = "" Then
Set rs = Server.CreateObject("ADODB.RecordSet")
rs.CursorLocation = adUseClient
rs.CacheSize = 5
mypage = Request.Form("pgNum")
If  mypage = "" Then mypage = 1
rs.Open "SELECT * FROM TABLE ORDER BY FIELD ASC", cnDZ, adOpenStatic
If Not rs.EOF Then
  rs.MoveFirst
  rs.PageSize = 20 'change this number to exactly how many records per page ya wanna show
  maxcount = cint(rs.PageCount)
  rs.AbsolutePage = mypage
  howmanyrecs = 0
  Response.Write"<table border=0>"
  LinkCount = 0
  While Not rs.EOF And howmanyrecs < rs.pagesize
  If LinkCount Mod 2 = 0 Then bgColor = " bgcolor=#F0F0F0" Else bgColor = ""
  Response.Write"<tr"&bgColor&"><td nowrap>"&_
"<a href=""myPage.asp?specific="&rs("ID")&""">"&rs("FIELD")&"</a></td>"&_
"<td width=""100%"" nowrap>"&Left(rs("FIELD2"),40)&"</td></tr>"
  LinkCount = LinkCount + 1
  rs.MoveNext
  howmanyrecs = howmanyrecs + 1
  Wend
  Response.Write"</table>"
  If maxcount > 1 Then
If mypage + 1 > maxcount Then nextPg = 1 Else nextPg = mypage + 1
Response.Write"<form method=post action=""myPage.asp"">"&_
"<nobr>Page "&mypage&" of "&maxcount&"    Navigate to Page:<input
type=text name=pgNum size=3 maxlength=3 value="""&nextPg&""">  <input type=submit name=gopgNum
value=GO></nobr></form>"
  End If
Else Response.Write"Sorry, nothing is available at the moment."
End If
rs.Close
Set rs = Nothing
Else
Set rs = cnDZ.Execute("SELECT * FROM TABLE WHERE ID = "&specific&"")
Do Until rs.EOF
Response.Write""&rs("FIELD")&"<br>"&_
  ""&rs("FIELD2")&"<br>"
rs.MoveNext
Loop
rs.Close
Set rs = Nothing
End If
%>