asp的offset的一个go to page

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>



<%

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

%>

asp的offset的一个go to page

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