asp的offset的一个go to page



<%@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)
%>



相关阅读:
使CheckBoxList的Attributes属性生效(修改微软的一个bug)
windows系统技巧:远程桌面连接技巧两则
在Linux系统下如何正确查看Raid信息
鼠标放在放在输入框上面提示效果
从四个角度揭密Windows Server 2008 技术
从零开始学习jQuery (五) jquery事件与事件对象
Oracle autotrace使用说明
js 禁用浏览器的后退功能的简单方法
UNIX防止非法用户注册的技术
Linux操作系统下安装QQ最简单的方法
用php过滤危险html代码的函数
JavaScript事件处理程序(事件侦听器)
利用JScript中运算符"||"和"&&"的特殊特性实现代码精简
高手总结CSS书写技巧
快速导航

Copyright © 2016 phpStudy | 皖ICP备18014864号-4