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Classic ASP Basics For beginner programmers starting with "classic" ASP 3, pre-".NET." NOT for ASP.NET 1.0, 1.1, or 2.0 |
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August 11th, 2004, 04:43 AM
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How to move next Record
I have a page of guest book and I want to display one record at a time and there should be links which will move to next and previus record. I can display the first record and then no idea to how to move next record by cliking on link ?
Numan
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Love is the most precious thing of this world. So find and grab it!
__________________
(*_*)
Numan
--------------------------------------------------
It is not important what you get But important is how you got it
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August 11th, 2004, 06:50 AM
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Hello,
You can do with recordset pagesize, cachesize, absolutepage
Every time the page is refreshed and retrives the data.
Or you can do this with XML
Store the data into XML file dynamically and retrieve from xml file.
This is faster.
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August 11th, 2004, 08:20 AM
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However, storing the xml can mean you are storing a fairly large XML in memory, so you have to Assess the situation before implementing such a solution.
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August 11th, 2004, 08:13 PM
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hi,
No need to store data initially in XML. Its dynamic, you retrieve from XML instead of having pressure on server every time.
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August 12th, 2004, 04:13 AM
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Thanks fro all for responding to my problem. But Dare I found the solution which is
<%
strSQL ="SELECT * FROM Guestbook order by Id desc"
Set Recordset1= objDataConn.Execute(strSQL)
Recordset1_numRows = 0
%>
<%
Dim Repeat1__numRows
Dim Repeat1__index
Repeat1__numRows = 5
Repeat1__index = 0
Recordset1_numRows = Recordset1_numRows + Repeat1__numRows
%>
<%
' *** Recordset Stats, Move To Record, and Go To Record: declare stats variables
Dim Recordset1_total
Dim Recordset1_first
Dim Recordset1_last
' set the record count
Recordset1_total = Recordset1.RecordCount
' set the number of rows displayed on this page
If (Recordset1_numRows < 0) Then
Recordset1_numRows = Recordset1_total
Elseif (Recordset1_numRows = 0) Then
Recordset1_numRows = 1
End If
' set the first and last displayed record
Recordset1_first = 1
Recordset1_last = Recordset1_first + Recordset1_numRows - 1
' if we have the correct record count, check the other stats
If (Recordset1_total <> -1) Then
If (Recordset1_first > Recordset1_total) Then
Recordset1_first = Recordset1_total
End If
If (Recordset1_last > Recordset1_total) Then
Recordset1_last = Recordset1_total
End If
If (Recordset1_numRows > Recordset1_total) Then
Recordset1_numRows = Recordset1_total
End If
End If
%>
<%
Dim MM_paramName
%>
<%
' *** Move To Record and Go To Record: declare variables
Dim MM_rs
Dim MM_rsCount
Dim MM_size
Dim MM_uniqueCol
Dim MM_offset
Dim MM_atTotal
Dim MM_paramIsDefined
Dim MM_param
Dim MM_index
Set MM_rs = Recordset1
MM_rsCount = Recordset1_total
MM_size = Recordset1_numRows
MM_uniqueCol = ""
MM_paramName = ""
MM_offset = 0
MM_atTotal = false
MM_paramIsDefined = false
If (MM_paramName <> "") Then
MM_paramIsDefined = (Request.QueryString(MM_paramName) <> "")
End If
%>
<%
' *** Move To Record: handle 'index' or 'offset' parameter
if (Not MM_paramIsDefined And MM_rsCount <> 0) then
' use index parameter if defined, otherwise use offset parameter
MM_param = Request.QueryString("index")
If (MM_param = "") Then
MM_param = Request.QueryString("offset")
End If
If (MM_param <> "") Then
MM_offset = Int(MM_param)
End If
' if we have a record count, check if we are past the end of the recordset
If (MM_rsCount <> -1) Then
If (MM_offset >= MM_rsCount Or MM_offset = -1) Then ' past end or move last
If ((MM_rsCount Mod MM_size) > 0) Then ' last page not a full repeat region
MM_offset = MM_rsCount - (MM_rsCount Mod MM_size)
Else
MM_offset = MM_rsCount - MM_size
End If
End If
End If
' move the cursor to the selected record
MM_index = 0
While ((Not MM_rs.EOF) And (MM_index < MM_offset Or MM_offset = -1))
MM_rs.MoveNext
MM_index = MM_index + 1
Wend
If (MM_rs.EOF) Then
MM_offset = MM_index ' set MM_offset to the last possible record
End If
End If
%>
<%
' *** Move To Record: if we dont know the record count, check the display range
If (MM_rsCount = -1) Then
' walk to the end of the display range for this page
MM_index = MM_offset
While (Not MM_rs.EOF And (MM_size < 0 Or MM_index < MM_offset + MM_size))
MM_rs.MoveNext
MM_index = MM_index + 1
Wend
' if we walked off the end of the recordset, set MM_rsCount and MM_size
If (MM_rs.EOF) Then
MM_rsCount = MM_index
If (MM_size < 0 Or MM_size > MM_rsCount) Then
MM_size = MM_rsCount
End If
End If
' if we walked off the end, set the offset based on page size
If (MM_rs.EOF And Not MM_paramIsDefined) Then
If (MM_offset > MM_rsCount - MM_size Or MM_offset = -1) Then
If ((MM_rsCount Mod MM_size) > 0) Then
MM_offset = MM_rsCount - (MM_rsCount Mod MM_size)
Else
MM_offset = MM_rsCount - MM_size
End If
End If
End If
' reset the cursor to the beginning
If (MM_rs.CursorType > 0) Then
MM_rs.MoveFirst
Else
MM_rs.Requery
End If
' move the cursor to the selected record
MM_index = 0
While (Not MM_rs.EOF And MM_index < MM_offset)
MM_rs.MoveNext
MM_index = MM_index + 1
Wend
End If
%>
<%
' *** Move To Record: update recordset stats
' set the first and last displayed record
Recordset1_first = MM_offset + 1
Recordset1_last = MM_offset + MM_size
If (MM_rsCount <> -1) Then
If (Recordset1_first > MM_rsCount) Then
Recordset1_first = MM_rsCount
End If
If (Recordset1_last > MM_rsCount) Then
Recordset1_last = MM_rsCount
End If
End If
' set the boolean used by hide region to check if we are on the last record
MM_atTotal = (MM_rsCount <> -1 And MM_offset + MM_size >= MM_rsCount)
%>
<%
' *** Go To Record and Move To Record: create strings for maintaining URL and Form parameters
Dim MM_keepNone
Dim MM_keepURL
Dim MM_keepForm
Dim MM_keepBoth
Dim MM_removeList
Dim MM_item
Dim MM_nextItem
' create the list of parameters which should not be maintained
MM_removeList = "&index="
If (MM_paramName <> "") Then
MM_removeList = MM_removeList & "&" & MM_paramName & "="
End If
MM_keepURL=""
MM_keepForm=""
MM_keepBoth=""
MM_keepNone=""
' add the URL parameters to the MM_keepURL string
For Each MM_item In Request.QueryString
MM_nextItem = "&" & MM_item & "="
If (InStr(1,MM_removeList,MM_nextItem,1) = 0) Then
MM_keepURL = MM_keepURL & MM_nextItem & Server.URLencode(Request.QueryString(MM_item))
End If
Next
' add the Form variables to the MM_keepForm string
For Each MM_item In Request.Form
MM_nextItem = "&" & MM_item & "="
If (InStr(1,MM_removeList,MM_nextItem,1) = 0) Then
MM_keepForm = MM_keepForm & MM_nextItem & Server.URLencode(Request.Form(MM_item))
End If
Next
' create the Form + URL string and remove the intial '&' from each of the strings
MM_keepBoth = MM_keepURL & MM_keepForm
If (MM_keepBoth <> "") Then
MM_keepBoth = Right(MM_keepBoth, Len(MM_keepBoth) - 1)
End If
If (MM_keepURL <> "") Then
MM_keepURL = Right(MM_keepURL, Len(MM_keepURL) - 1)
End If
If (MM_keepForm <> "") Then
MM_keepForm = Right(MM_keepForm, Len(MM_keepForm) - 1)
End If
' a utility function used for adding additional parameters to these strings
Function MM_joinChar(firstItem)
If (firstItem <> "") Then
MM_joinChar = "&"
Else
MM_joinChar = ""
End If
End Function
%>
<%
' *** Move To Record: set the strings for the first, last, next, and previous links
Dim MM_keepMove
Dim MM_moveParam
Dim MM_moveFirst
Dim MM_moveLast
Dim MM_moveNext
Dim MM_movePrev
Dim MM_urlStr
Dim MM_paramList
Dim MM_paramIndex
Dim MM_nextParam
MM_keepMove = MM_keepBoth
MM_moveParam = "index"
' if the page has a repeated region, remove 'offset' from the maintained parameters
If (MM_size > 1) Then
MM_moveParam = "offset"
If (MM_keepMove <> "") Then
MM_paramList = Split(MM_keepMove, "&")
MM_keepMove = ""
For MM_paramIndex = 0 To UBound(MM_paramList)
MM_nextParam = Left(MM_paramList(MM_paramIndex), InStr(MM_paramList(MM_paramIndex),"=") - 1)
If (StrComp(MM_nextParam,MM_moveParam,1) <> 0) Then
MM_keepMove = MM_keepMove & "&" & MM_paramList(MM_paramIndex)
End If
Next
If (MM_keepMove <> "") Then
MM_keepMove = Right(MM_keepMove, Len(MM_keepMove) - 1)
End If
End If
End If
' set the strings for the move to links
If (MM_keepMove <> "") Then
MM_keepMove = MM_keepMove & "&"
End If
MM_urlStr = Request.ServerVariables("URL") & "?" & MM_keepMove & MM_moveParam & "="
MM_moveFirst = MM_urlStr & "0"
MM_moveLast = MM_urlStr & "-1"
MM_moveNext = MM_urlStr & CStr(MM_offset + MM_size)
If (MM_offset - MM_size < 0) Then
MM_movePrev = MM_urlStr & "0"
Else
MM_movePrev = MM_urlStr & CStr(MM_offset - MM_size)
End If
%>
<html>
<head>
<title>FR FRUITION | GuestBook</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="css/style.css" rel="stylesheet" type="text/css">
</head>
<body topmargin="0" bottommargin="0" rightmargin="0" leftmargin="0" class="bg" link="#000000" vlink="#000000" alink="#000000">
<a name="profile"></a>
<form name="client_area">
<table width="780" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td align="center" valign="top">
<table width="780" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="86" align="left" valign="top"><img src="images/header.gif" width="780" height="86"></td>
</tr>
<tr>
<td height="37" align="right" valign="middle" background="images/menu_bg.gif">
<table width="570" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="117" height="17" class="MenuTitle"><a href="profile.html" class="decor" title="profile">Profile</a></td>
<td width="120" class="MenuTitle"><a href="services.html" class="decor" title="services">Services</a></td>
<td width="126" class="MenuTitle"><a href="portfolio.html" class="decor" title="portfolio">Portfolio</a></td>
<td width="117" class="MenuTitle"><a href="career.html" class="decor" title="Career">Career</a></td>
<td width="90" class="MenuTitle"> <a href="contact.html" class="decor" title="contact us">Contact</a></td>
</tr>
</table> </td>
</tr>
</table>
<table width="780" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="227" align="left" valign="top"><img src="images/left_top_fill.gif" width="335" height="79"></td>
<td width="553" align="left" valign="top" background="images/title_bg.gif"><table width="193" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="193" height="37" align="left" valign="middle" class="fruition"><a href="index.html" title="home page" class="decor3">FRUITION</a></td>
</tr>
<tr>
<td height="20" align="left" valign="middle" class="PageTitle">guestbook</td>
</tr>
</table></td>
</tr>
</table>
<table width="780" border="0" cellspacing="0" cellpadding="0" height="301">
<tr align="left" valign="top">
<td width="151" height="301">
<table width="154" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="154" height="27" align="left" valign="middle" background="images/Untitled1.gif"></td>
</tr>
</table>
<table width="154" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="154" height="29" align="left" valign="middle" background="images/news_heading.gif"><table width="127" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="27" align="left" valign="middle"> </td>
<td width="100" align="right" valign="middle" class="content">
<a href="guestbook.asp" title="sign guestbook" class="decor2">sign
guestbook</a></td>
</tr>
</table></td>
</tr>
<tr>
<td height="29" align="left" valign="middle" background="images/news_heading.gif"><table width="127" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="27" align="left" valign="middle"> </td>
<td width="100" align="right" valign="middle" class="content">
view guestbook</td>
</tr>
</table></td>
</tr>
<tr>
<td align="left" valign="top" background="images/news_bg.gif"> </td>
</tr>
</table>
</td>
<td>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="133" style="border-collapse: collapse" bordercolor="#111111">
<tr>
<td width="88%" height="19" align="left" valign="middle"> </td>
<td width="12%" align="right" valign="top"><img src="images/title_bg2.gif" width="50" height="19"></td>
</tr>
<tr background="images/guestbook/viewBookTop.gif">
<td height="18" colspan="2" align="left" background="images/guestbook/viewBookTop.gif"> </td>
</tr>
<tr align="center" valign="middle" background="images/guestbook/viewBookBg.gif">
<td height="76" colspan="2">
<table width="100%" border="0" cellpadding="0" cellspacing="0" background="images/guestbook/viewBookBg.gif">
<tr>
<td height="150" align="center">
<table width="499" border="0" cellpadding="0" cellspacing="0" class="tbl">
<%
While ((Repeat1__numRows <> 0) AND (NOT Recordset1.EOF))
%>
<tr bgcolor="#E4E4E4">
<td width="7" align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading"> </td>
<td width="61" align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading">Name:</td>
<td width="166" bgcolor="#EBEBEB" class="content"><%=(Recordset1.Fields.Item("Name") .Value)%> </td>
<td width="68" bgcolor="#EBEBEB" class="contentheaading">E-mail:</td>
<td width="197" bgcolor="#EBEBEB" class="content"><a href="mailto:<%=(Recordset1.Fields.Item("Email").V alue)%> " class="decor2"><%=(Recordset1.Fields.Item("Email") .Value)%> </a>
</td>
</tr>
<tr bgcolor="#E4E4E4">
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading"> </td>
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading">City:</td>
<td bgcolor="#EBEBEB" class="content"><%=(Recordset1.Fields.Item("City") .Value)%>
</td>
<td bgcolor="#EBEBEB" class="contentheaading">Country:</td>
<td bgcolor="#EBEBEB" class="content"><%=(Recordset1.Fields.Item("Countr y").Value)%>
</td>
</tr>
<tr bgcolor="#E4E4E4">
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading"> </td>
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading">URL:</td>
<td bgcolor="#EBEBEB" class="content"><a href="<%=(Recordset1.Fields.Item("URL").Value)%>" class="decor2"><%=(Recordset1.Fields.Item("URL").V alue)%></a>
</td>
<td bgcolor="#EBEBEB" class="contentheaading">Date:</td>
<td bgcolor="#EBEBEB" class="content"><%=(Recordset1.Fields.Item("Dates" ).Value)%>
</td>
</tr>
<tr bgcolor="#E4E4E4">
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading"> </td>
<td align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading">Messege:</td>
<td colspan="3" bgcolor="#EBEBEB" class="content"><%=(Recordset1.Fields.Item("Messag e").Value)%>
</td>
</tr>
<tr bgcolor="#E4E4E4">
<td colspan="5" align="center" valign="middle" bgcolor="#EBEBEB" class="contentheaading" height="2"> </td>
</tr>
<tr>
<td colspan="5" align="left" valign="middle" class="contentheaading"></td>
</tr>
<%
Repeat1__index=Repeat1__index+1
Repeat1__numRows=Repeat1__numRows-1
Recordset1.MoveNext()
Wend
%>
</table>
<table width="499" border="0" cellpadding="0" cellspacing="0" class="content">
<tr>
<td width="188"> <% If MM_offset <> 0 Then %>
<a href="<%=MM_movePrev%>" class="decor2">Previous</a>
<%else response.Write("Previous") End If ' end MM_offset <> 0 %>
</td>
<td width="102"> <% If MM_offset <> 0 Then %>
<A HREF="<%=MM_moveFirst%>" class="decor2">First</A>
<%else response.Write("First") End If ' end MM_offset <> 0 %> </td>
<td width="85" align="right"> <% If Not MM_atTotal Then %>
<A HREF="<%=MM_moveLast%>" class="decor2">Last</A>
<%else response.Write("Last") End If ' end Not MM_atTotal %> </td>
<td width="124" align="right"> <% If Not MM_atTotal Then %>
<a href="<%=MM_moveNext%>" class="decor2">Next</a>
<%else response.Write("Next") End If ' end Not MM_atTotal %> </td>
</tr>
</table></td>
</tr>
</table> </td>
</tr>
<tr>
<td height="19" colspan="2" align="left" valign="middle" background="images/guestbook/viewBookBottom.gif">
</td>
</tr>
</table>
<p> </p>
<p><br>
</p>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="1">
<tr>
<td width="28%" height="1" align="center"> </td>
<td width="72%" align="right" height="1"> <table width="258" border="0" cellspacing="0" cellpadding="0" height="53">
<tr background="images/welcome_bg.gif">
<td width="258" height="53" align="center" background="images/footer_fill.gif">
</td>
</tr>
</table></td>
</tr>
</table> </td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="1">
<tr>
<td height="1" align="left" valign="top">
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="780">
<tr>
<td width="154"> </td>
<td width="626" height="27" background="images/site_footer.gif">
<table width="425" border="0" cellspacing="0" cellpadding="0" height="21">
<tr>
<td width="113" align="center" valign="middle" class="content" height="21"></td>
<td width="312" align="center" valign="bottom" class="content" height="21">©
2004 FR Fruition ®, All Rights Reserved</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
<%
Recordset1.Close()
Set Recordset1 = Nothing
%>
Numan
--------------------------------------------------
Love is the most precious thing of this world. So find and grab it!
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August 13th, 2004, 05:19 PM
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Friend of Wrox
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Join Date: Jun 2003
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Hi Numan,
Please don't post such long code here, unless asked for. It is really hard to go through the entire code to find whatyou are missing and where you go wrong. Here are some links that does record paging. You can use this as a template and make that work for 1 record per page.
Recordset Paging Sample code
Recordset Paging - output
You can set the following variable to 1 and do the displaying work as you desire.
iPageSize = 10 ' You could easily allow users to change this
Cheers!
_________________________
- Vijay G
Strive for Perfection
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