asp的offset的一个go to page第1/2页


             <%@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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