Question

Bookmark solution to navigate...

Asked by: eghtebas

I need some help to complete the attached code. Depending on the value of the parameter supplied:

'iConst:   0 previous; 1 next; 2 first; 3 last; 5 new

It should show the record designated by iConst.

Thank you.


Function fnGoto(iConst As Integer)

    Dim rs As DAO.Recordset
    Dim i As Integer

    Set rs = Me.RecordsetClone
    With rs
   
    ' find the position of current record i

    ' update record no/ total records
    Me!txtNoOfNos = i + 1 & "/" & .RecordCount

         ' use bookmark to navigate to the desired record identified by:
       

         Select Case iConst

            Case 0 'previous
                go to the previous record
                ....

            Case 1 'next
                go to the first record
                ....

            Case 2 'first
                go to the first record
                ....

            Case 3 'last
                go to the last record
                ....

            Case 5 'new
                go to the new record
                ....

        End Select

    End With
 
   rs.close
   
End Function

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Asked On
2009-11-03 at 12:59:15ID24868810
Topics

Microsoft Access Database

,

Access Coding/Macros

Participating Experts
1
Points
500
Comments
11

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Answers

 

by: thenelsonPosted on 2009-11-03 at 13:14:53ID: 25733745

Lets make it simpler:


Function fnGoto(iConst As Integer)

         Select Case iConst

            Case 0 'previous
                DoCmd.GoToRecord acDataForm, Me.Name, acPrevious
               
            Case 1 'next
                DoCmd.GoToRecord acDataForm, Me.Name, acNext
               
            Case 2 'first
                DoCmd.GoToRecord acDataForm, Me.Name, acFirst
               
            Case 3 'last
                DoCmd.GoToRecord acDataForm, Me.Name, acLast
               
            Case 5 'new
                DoCmd.GoToRecord acDataForm, Me.Name, acNewRec
        End Select

    End With
 
   
End Function

 

by: eghtebasPosted on 2009-11-03 at 13:16:44ID: 25733772

thenelson,

I am looking for Boomark solution.

Thanks.

 

by: eghtebasPosted on 2009-11-03 at 13:18:04ID: 25733789

You could also could be written as:

DoCmd.GoToRecord acDataForm, Me.Name, iConst

in one line.

 

by: thenelsonPosted on 2009-11-03 at 13:30:39ID: 25733976

In that case:
recordset.{MoveFirst | MoveLast | MoveNext | MovePrevious}

There is no move to new record in a record set.

 

by: eghtebasPosted on 2009-11-03 at 14:31:29ID: 25734555

So, we don't need to use bookmark at all, right?

Could you please complete my original code the way that you see it could work?

Thanks,

mike

 

by: eghtebasPosted on 2009-11-03 at 14:44:05ID: 25734683

You code moves to the desired record at recordset level. It does not show the changes on the form. Also record position 1/10, 2/10, etc. is not addressed yet.

 

by: thenelsonPosted on 2009-11-03 at 14:52:18ID: 25734782

With bookmark:
Function fnGoto(iConst As Integer)

    Dim rs As DAO.Recordset
    Dim i As Integer

    Set rs = Me.RecordsetClone
    With rs
   
    ' find the position of current record i

    ' update record no/ total records
    Me!txtNoOfNos = i + 1 & "/" & .RecordCount

         ' use bookmark to navigate to the desired record identified by:
 
         Select Case iConst
            Case 0 'previous
                .MovePrevious
            Case 1 'next
                .MoveNext
            Case 2 'first
                .MoveFirst
            Case 3 'last
                .MoveLast
        End Select
        Me.Bookmark = .Bookmark
    End With
   rs.close
End Function



Without bookmark:
Function fnGoto(iConst As Integer)

    Dim rs As DAO.Recordset
    Dim i As Integer

    Set rs = Me.Recordset   'Use the recordset itself instead of clone
    With rs
   
    ' find the position of current record i

    ' update record no/ total records
    Me!txtNoOfNos = i + 1 & "/" & .RecordCount

         Select Case iConst
            Case 0 'previous
                .MovePrevious
            Case 1 'next
                .MoveNext
            Case 2 'first
                .MoveFirst
            Case 3 'last
                .MoveLast
        End Select
    End With
   rs.close
End Function

 

by: eghtebasPosted on 2009-11-03 at 14:52:46ID: 25734787

txtNoOfNos = .AbsolutePoisition + 1 & "/" & .RecordCount I have it figured out for the record count (I thought it was included in the original question).

 

by: eghtebasPosted on 2009-11-03 at 14:55:42ID: 25734805

Sorry I didn't see your post

 

by: eghtebasPosted on 2009-11-03 at 18:59:26ID: 25736034

So far I have the following. All works except add new record for which I will post a new question later:


Function fnGoto(iConst As Integer)
   Dim rs As DAO.Recordset
   Dim i As Integer
   Dim BM As Variant
   Dim iPosition As Long
   Dim iEnable As Integer
   Dim iTotal As Integer
   
   Set rs = Me.RecordsetClone
   With rs
   rs.MoveFirst
   Do Until rs.EOF
       If !ID = Me!ID Then
           iPosition = .AbsolutePosition
           Exit Do
       ElseIf Nz(Me!ID, "") = "" Then
           .MoveLast
           iPosition = .RecordCount
           iEnable = -1
           Exit Do
       End If
       .MoveNext
   Loop
   
   .MoveLast
   iTotal = .RecordCount
   .MoveFirst
       
    Select Case iConst
       Case 0: iPosition = iPosition - 1
       Case 1: iPosition = iPosition + 1
       Case 2: iPosition = 0
       Case 3: iPosition = .RecordCount - 1
       Case 5: iPosition = -1
   End Select
           
    If iPosition = -1 Then
       DoCmd.GoToRecord acDataForm, Me.Name, acNewRec
       Me!txtNoOfNos = "(New)"
   Else
           
       .MoveFirst
       For i = 0 To .RecordCount - 1
           If .AbsolutePosition = iPosition Then
               BM = .Bookmark
               iPosition = .AbsolutePosition + 1
           Exit For
           End If
           .MoveNext
       Next i
       Me.Bookmark = BM
       Me!txtNoOfNos = iPosition & "/" & .RecordCount
   End If
   iEnable = iPosition
   End With

    rs.Close

    ' routing to enable or disable the command buttons  as required.
   EnableDisableFor iEnable, iTotal
   
End Function

 

by: thenelsonPosted on 2009-11-03 at 20:51:14ID: 25736486

You ran replace
   rs.MoveFirst
   Do Until rs.EOF
       If !ID = Me!ID Then
           iPosition = .AbsolutePosition
           Exit Do
       ElseIf Nz(Me!ID, "") = "" Then
           .MoveLast
           iPosition = .RecordCount
           iEnable = -1
           Exit Do
       End If
       .MoveNext
   Loop
With
       .Bookmark = Me.Bookmark
       iPosition = .AbsolutePosition


You ran replace
       .MoveFirst
       For i = 0 To .RecordCount - 1
           If .AbsolutePosition = iPosition Then
               BM = .Bookmark
               iPosition = .AbsolutePosition + 1
           Exit For
           End If
           .MoveNext
       Next i
with
       .AbsolutePosition = iPosition
        BM = .Bookmark



Seems like a lot of work when this will to the same thing (with problem handling):


Function fnGoto(iConst As Integer)

With Me.Recordset
    If Me.NewRecord Then
        If iConst = 0 Then iConst = 2
        If iConst = 1 Then iConst = 3
    End If
    Select Case iConst
       Case 0: If .AbsolutePosition > 0 Then .MovePrevious
       Case 1: If .AbsolutePosition < .RecordCount Then .MoveNext
       Case 2: .MoveFirst
       Case 3: .MoveLast
       Case 5: DoCmd.GoToRecord acDataForm, Me.Name, acNewRec
    End Select
    If Me.NewRecord Then
        Me!txtNoOfNos = "(New)"
    Else
        Me!txtNoOfNos = .AbsolutePosition + 1 & "/" & .RecordCount
    End If
End With
End Function



Glad to help and thank you very much for the points with "A" grade!

Happy computing!

Nelson

20120131-EE-VQP-002

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