asp的offset的一个go to page第1/2页
框架(架构)  /  管理员 发布于 4年前   371
<%@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) %>
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