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Old September 29th, 2005, 07:26 PM
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Default Recordset Paging incorrectly. Please help!

Hi

I have a long recordset( about 80 records with ID =7) and try to show 10 records per page. I created a navigation bar in Dreamweaver MX. The very first page showed 10 records (with ID = 7) correctly.
However, when I click on the "Next" button then the next page only showed a few records with different ID =8 .

If I try to show all records with ID=7 on one page then everything is fine. All 80 records with ID=7 are showed correctly.

The below code is my code for this page.
Could some one please help. I'm so stuck:(. Thanks so much

<%@LANGUAGE="VBSCRIPT" CODEPAGE="1252"%>

<%
Dim Recordset1__MMColParam
Recordset1__MMColParam = "1"
If (Request.Form("ddlOrg") <> "") Then
  Recordset1__MMColParam = Request.Form("ddlOrg")
End If
%>
<%
Dim Recordset1
Dim Recordset1_numRows

Set Recordset1 = Server.CreateObject("ADODB.Recordset")
Recordset1.ActiveConnection = MM_connLawyerLocator_STRING
Recordset1.Source = "SELECT * FROM site WHERE DisID = " + Replace(Recordset1__MMColParam, "'", "''") + " ORDER BY State ASC"
Recordset1.CursorType = 0
Recordset1.CursorLocation = 2
Recordset1.LockType = 1
Recordset1.Open()

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 = Server.HTMLEncode(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
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Laywer Locator-Agency List</title>
<style type="text/css">
<!--
.style5 {font-family: Arial, Helvetica, sans-serif; font-size: 12px; }
.style6 {
    color: #9B0000;
    font-weight: bold;
}
.style7 {font-family: Arial, Helvetica, sans-serif; font-weight: bold; font-size: 12px; color: #FFFFFF; }
-->
</style>
</head>

<body>
<table width="100%" border="0" align="center" cellpadding="1" cellspacing="0">
    <tr>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td><span class="style4 style2"><span class="style5 style14 style6">AGENCY LIST </span></span></td>
    </tr>
</table>

<table width="90%" border="0" align="center" cellpadding="1" cellspacing="0">
    <tr>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td><span class="style11 style5">Click on a agency's name below to view its office of laywers:</span></td>
    </tr>
</table>

  <table width="90%" align="center" cellpadding="2" cellspacing="1" bgcolor="#F1F1F1">
    <tr bgcolor="#0093D9">
      <td width="30%"><div align="center" class="style7">Name</div></td>
      <td><div align="center" class="style7">Address1</div></td>
      <td><div align="center" class="style7">Address2</div></td>
      <td><div align="center" class="style7">City</div></td>
      <td><div align="center" class="style7">State</div></td>
      <td><div align="center" class="style7">Zip</div></td>
      <td><div align="center" class="style7">Country</div></td>
      <td><div align="center" class="style7">DisID</div></td>
    </tr>
    <% While ((Repeat1__numRows <> 0) AND (NOT Recordset1.EOF)) %>
    <tr>
      <td><span class="style5"><A HREF="OfficeList.asp?<%= Server.HTMLEncode(MM_keepNone) & MM_joinChar(MM_keepNone) & "O_ID=" & Recordset1.Fields.Item("O_ID").Value %>"><%=(Recordset1.Fields.Item("Name").Value)%></A></span></td>
      <td><span class="style5"><%=(Recordset1.Fields.Item("Add1"). Value)%></span></td>
      <td><span class="style5"><%=(Recordset1.Fields.Item("Add2"). Value)%></span></td>
      <td><div align="center"><span class="style5"><%=(Recordset1.Fields.Item("City"). Value)%></span></div></td>
      <td><div align="center"><span class="style5"><%=(Recordset1.Fields.Item("State") .Value)%></span></div></td>
      <td><div align="center"><span class="style5"><%=(Recordset1.Fields.Item("Zip").V alue)%></span></div></td>
      <td><div align="center"><span class="style5"><%=(Recordset1.Fields.Item("Country ").Value)%></span></div></td>
      <td><div align="center"><span class="style5"><%=(Recordset1.Fields.Item("DisID") .Value)%></span></div></td>
    </tr>
    <%
  Repeat1__index=Repeat1__index+1
  Repeat1__numRows=Repeat1__numRows-1
  Recordset1.MoveNext()
Wend
%>
  </table>

<table width="90%" align="center" cellpadding="1" cellspacing="0">

    <tr>
      <td>&nbsp;
        <table border="0" width="50%" align="center">
          <tr>
            <td width="23%" align="center"><% If MM_offset <> 0 Then %>
              <a href="<%=MM_moveFirst%>"><img src="First.gif" border=0></a>
              <% End If ' end MM_offset <> 0 %>
            </td>
            <td width="31%" align="center"><% If MM_offset <> 0 Then %>
              <a href="<%=MM_movePrev%>"><img src="Previous.gif" border=0></a>
              <% End If ' end MM_offset <> 0 %>
            </td>
            <td width="23%" align="center"><% If Not MM_atTotal Then %>
              <a href="<%=MM_moveNext%>"><img src="Next.gif" border=0></a>
              <% End If ' end Not MM_atTotal %>
            </td>
            <td width="23%" align="center"><% If Not MM_atTotal Then %>
              <a href="<%=MM_moveLast%>"><img src="Last.gif" border=0></a>
              <% End If ' end Not MM_atTotal %>
            </td>
          </tr>
        </table></td>
    </tr>
    <tr>
      <td><div align="right"><a href="javascript:history.back();" class="style11">Return to Main Page </a></div></td></tr>
</table>

</body>
</html>
<%
Recordset1.Close()
Set Recordset1 = Nothing
%>
 
Old September 30th, 2005, 12:42 AM
Imar's Avatar
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Default

Where is ddlOrg defined?

This control, a drop-down most likely, is the driving parameter for the WHERE clause. However, I don't see it defined in the page anywhere.


Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
 
Old September 30th, 2005, 06:14 PM
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Default

Hi Imar,

The dropdown list(ddlOrg) is define in another page not this page. But I have the below code in this page to get the value from this dropdown when it's selected. Thanks




<%
Dim Recordset1__MMColParam
Recordset1__MMColParam = "1"
If (Request.Form("ddlOrg") <> "") Then
  Recordset1__MMColParam = Request.Form("ddlOrg")
End If
%>


 
Old September 30th, 2005, 06:21 PM
Imar's Avatar
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Default

That's what I thought. That explains the problem.

Here's what happens. First, page 1 with the drop-down submits to page 2 that gets its value from the Request.Form collection. Your query runs fine because the value can be retrieved from the form.

Then the user tries to browse to the next page; the page reloads and tries to get the value from the drop-down again. However, this time there is no form because the form hasn't been submitted. The end result is that you end up with a messed up query.

Usually, when you use paging, the controls that determine the query are in the same page as the "paging" code. Otherwise, you need to find a way to maintain the state for the drop-down and pass it from page to page while paging.

When you enable paging, make sure you check the options to maintain both the querystring and form values.

HtH,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
While typing this post, I was listening to: Another Night In by Tindersticks (Track 1 from the album: Curtains) What's This?
 
Old October 4th, 2005, 05:39 PM
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Default

Thanks Imar,

This explaination helps me a lot.






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