asp的offset的一个go to page
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<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!--#include file="Connections/conn.asp" -->
<%
Dim Recordset1
Dim Recordset1_cmd
Dim Recordset1_numRows
Set Recordset1_cmd = Server.CreateObject ("ADODB.Command")
Recordset1_cmd.ActiveConnection = MM_conn_STRING
Recordset1_cmd.CommandText = "SELECT * FROM list"
Recordset1_cmd.Prepared = true
Set Recordset1 = Recordset1_cmd.Execute
Recordset1_numRows = 0
%>
<%
Dim Repeat1__numRows
Dim Repeat1__index
Repeat1__numRows = 2
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
%>
<%
' *** Recordset Stats: if we don't know the record count, manually count them
If (Recordset1_total = -1) Then
' count the total records by iterating through the recordset
Recordset1_total=0
While (Not Recordset1.EOF)
Recordset1_total = Recordset1_total + 1
Recordset1.MoveNext
Wend
' reset the cursor to the beginning
If (Recordset1.CursorType > 0) Then
Recordset1.MoveFirst
Else
Recordset1.Requery
End If
' set the number of rows displayed on this page
If (Recordset1_numRows < 0 Or Recordset1_numRows > Recordset1_total) Then
Recordset1_numRows = Recordset1_total
End If
' set the first and last displayed record
Recordset1_first = 1
Recordset1_last = Recordset1_first + Recordset1_numRows - 1
If (Recordset1_first > Recordset1_total) Then
Recordset1_first = Recordset1_total
End If
If (Recordset1_last > Recordset1_total) Then
Recordset1_last = 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 = "id"
MM_paramName = "page"
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 Specific Record: handle detail parameter
If (MM_paramIsDefined And MM_rsCount <> 0) Then
' get the value of the parameter
MM_param = Request.QueryString(MM_paramName)
' find the record with the unique column value equal to the parameter value
MM_offset = 0
Do While (Not MM_rs.EOF)
If (CStr(MM_rs.Fields.Item(MM_uniqueCol).Value) = MM_param) Then
Exit Do
End If
MM_offset = MM_offset + 1
MM_rs.MoveNext
Loop
' if not found, set the number of records and reset the cursor
If (MM_rs.EOF) Then
If (MM_rsCount < 0) Then
MM_rsCount = MM_offset
End If
If (MM_size < 0 Or MM_size > MM_offset) Then
MM_size = MM_offset
End If
MM_offset = 0
' reset the cursor to the beginning
If (MM_rs.CursorType > 0) Then
MM_rs.MoveFirst
Else
MM_rs.Close
MM_rs.Open
End If
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
%>
<%
if request.QueryString("page")<>"" then
Recordset1_last=request.QueryString("page")*MM_size
offset=Recordset1_last-MM_size
url="?offset="&offset
response.Redirect(url)
end if
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<%
While ((Repeat1__numRows <> 0) AND (NOT Recordset1.EOF))
%>
<div><%=(Recordset1.Fields.Item("id").Value)%></div>
<%
Repeat1__index=Repeat1__index+1
Repeat1__numRows=Repeat1__numRows-1
Recordset1.MoveNext()
Wend
%>
<div> 总数<%=(Recordset1_total)%> 共<%=Recordset1_total/MM_size%>页当前第<%=(Recordset1_last/MM_size)%>页 <a href="<%=MM_moveFirst%>">首页</a> <a href="<%=MM_movePrev%>">上一页</a> <a href="<%=MM_moveNext%>">下一页</a> <a href="<%=MM_moveLast%>">最后一页</a>
<label>
<input name="page" type="text" id="page" value="<%=(Recordset1_last/MM_size)%>" size="5" />
<input name="button" type="submit" id="button" onclick="window.location.href='?page='+page.value" value="go" />
</label>
fist<%=(Recordset1_first)%> last<%=(Recordset1_last)%></div>
</body>
</html>
<%
Recordset1.Close()
Set Recordset1 = Nothing
%>
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