Hi all,
i want to assign the value to the specify recordset
below is my coding:
I want to update the recordset ( Rs("LastReadDate") ) become the time now. But failed to do so.Code:For i = 0 To Rs.RecordCount - 1 If DateAdd("s", Rs("Frequency"), Rs("Lastreaddate")) > Now Then tmpOPCItem(i).Read OPCDataSource.OPCDevice, myValue(i), myQuality(i), myTimeStamp(i) 'strAddress() = Split(tmpOPCItem(i).ItemID, ":") tmpValue = myValue(i) 'strSQL = "Select Address,LineId,LifterId,ComponentId,TriggerValue,ResetValue, " _ & "ActionId,ActionPara1,OPCServer,RealTimeData,timeCounter " _ & "from DELL_OPC_ADDRESS where processing <> 1 " _ & "and Active=1 and OPCServer=" & txtOPC.Text & " " _ & "and Address='" & strAddress(1) & "'" 'RsOPC.Open strSQL, Conn, adOpenStatic, adLockBatchOptimistic strTrigger = Rs("TriggerValue") If tmpValue <> "" Then NeedTrigger = False Select Case strTrigger Case "EMPTY" If CStr(tmpValue) = "" Then NeedTrigger = True Case "NONEMPTY" If CStr(tmpValue) <> "" Then NeedTrigger = True Case "TRUE", "FALSE" If CBool(tmpValue) = CBool(strTrigger) Then NeedTrigger = True End If Case "NONZERO" If IsNumeric(tmpValue) Then If CDbl(tmpValue) <> 0 Then NeedTrigger = True End If Case "0", "1", "2" If tmpValue = strTrigger Then NeedTrigger = True End Select 'Check if the TriggerValue stays there forever (due to ResetValue='NO ACTION'). 'If yes, then make sure TriggerValue <> RealTimeData If NeedTrigger And Rs.Fields("ResetValue") = "NO ACTION" Then If tmpValue = Rs.Fields("RealTimeData") Then NeedTrigger = False End If End If If NeedTrigger Then 'If tmpValue.ToUpper = CType(DR("triggerValue"), String).ToUpper Then ' theValue = tmpValue Set NewItem = lstviewEvent.ListItems.Add(, , Rs.Fields("LifterId")) NewItem.ListSubItems.Add , , Rs.Fields("Address") NewItem.ListSubItems.Add , , myValue(i) NewItem.ListSubItems.Add , , Time End If Rs("LastReadDate") = Now End If 'Conn.Close Rs.MoveNext Next 'Loop mytime = (GetTickCount() - mytime) MsgBox "TimeStamp: " & mytime & vbNewLine & "RecordCount: " & Rs.RecordCount 'Timer1.Enabled = True
Can someone have a clear guide to me?
thanks.




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