Question

Using VBA how do I reference each row in a datasheet-view subform?

Asked by: jasfout

I am in the process of assigning values from a user-filled subform to the appropriate table.  The problem is that there may be multiple entries on the subform entered in datasheet view and I cant seem to find a way to reference each row within the subform so that I can place the data appropriately.  This was originally a bound project, but I had to split it up and fill tables using vba instead.

Private Sub SaveVoucher()
'Populate Voucher table
Dim strsql As String
    strsql = "SELECT * FROM Voucher"
    Set rs = CurrentDb.OpenRecordset(strsql)
        rs.AddNew
        rs.Fields(0).Value = txtVID.Value 'VoucherID
        rs.Fields(1).Value = txtDate.Value
        rs.Fields(2).Value = txtEmployee.Value
        rs.Fields(3).Value = txtVendor.Value
        rs.Update
        rs.Close
        Set rs = Nothing
'Attempt populate Entries table for referenced voucher
Dim rs2 As ADODB.Recordset 'This is where I am getting lost
    Set rs2 = Me.Entries_Subform.Form.RecordsetClone 'This is where I am getting lost
 
    Do While Not rs.EOF
        rs2.AddNew 'rs2.Fields(0) is an autonumber as primary key
        rs2.Fields(1) = rs2.Fields("VoucherID")
        rs2.Fields(2) = rs2.Fields("Fund")
        rs2.Fields(3) = rs2.Fields("Dept")
        rs2.Fields(4) = rs2.Fields("Account")
        rs2.Fields(5) = rs2.Fields("Proj")
        rs2.Fields(6) = rs2.Fields("PO")
        rs2.Fields(7) = rs2.Fields("Amount")
        rs2.Fields(8) = rs2.Fields("Invoice")
        rs2.Fields(9) = rs2.Fields("Description")
        rs2.Update
        rs2.MoveNext
        Loop
        rs.Close
        Set rs2 = Nothing
End Sub

                                  
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Asked On
2009-06-09 at 17:49:50ID24477889
Tags

access

,

vba

Topic

Microsoft Access Database

Participating Experts
2
Points
50
Comments
6

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Answers

 

by: peter57rPosted on 2009-06-10 at 00:14:11ID: 24588613

You cannot create an unbound datasheet view (or an unbound continuous form)
It is impossible.

If you want to persist with this approach you will need to acquire a grid control that is compatible with Access.

 

by: LPurvisPosted on 2009-06-10 at 04:51:29ID: 24590232

There must be source of some type as Peter says, but the bound datasheet doesn't need to be bound to data though.
There are various choices.
Are you saying that you want to have a continuous form filled with data and then, only when you say "Go" have those rows inserted into your data table?
The most common method is a "work" table, a table which resides locally to your application FE and you append rows from that to the live table when you're ready to do so.
You can do this without even a work tabe if you're so inclined though. The source for the datasheet/continuous form can be created in memory only and assigned. (The append process is then iterative rather than a single append operation).

Just to question though:
>> "but I had to split it up "
Had to?
What sequence of circumstances left you with no choice?

 

by: jasfoutPosted on 2009-06-10 at 08:50:53ID: 24593032

>peter57r:
Thank you, but I cannot seem to find a 3rd party grid control at a price within my budget.

>LPurvis:
Excellent, Thank you!
I am assuming you mean bind the form to a separate table to hold temporary values until I decide to populate the real table. I'm not sure why I didnt think of that.

I wont have time to work on it until this afternoon, so if I am off track from what you meant by 'work' table , let me know.


The reason for unbounding was that I ended up with a mess of incomplete entries when user would cancel or close the form prematurely.  I attempted various undo's on various events but could not keep it clean.  
I have since learned to build my db's without anything being bound and found it to be much easier for me.

 

by: LPurvisPosted on 2009-06-10 at 09:24:34ID: 24593422

>> if I am off track
From the original table method?  No - that's it. A work table is simply a re-usable table that doesn't hold live, persisted data.
Some would call them Temp tables - but not in the strict sense, however even as a loose term it's not accurate as they're persisted and used (temporarily) again and again.

>> user would cancel or close the form prematurely
I can understand the appeal of unbound forms. But still believe their proper place is in an "as required" capacity rather than in general use.
They almost always come with an overhead of development investment though.

As for controlling entered data, well if there are rules for what must be present in a record for it to be committed then enforce those at the table level (i.e. make required field Required, Not Null). Errors raised by that in the form needn't be messy - they can easily be intercepted by you.
And ofr other business rules, the standard checks in BeforeUpdate, Unload, Dirty etc are all generally enough for data validation - if you check properly.
Have a look at the CancelUndo demo in the examples page linked to in my profile for a visualisation of what I mean.
(I'm not expecting you to jump ship from your preference - but I believe that until someone is fully informed then they're not making a decision properly).

Cheers.

 

by: jasfoutPosted on 2009-06-17 at 15:39:26ID: 31590698

Thank you

 

by: jasfoutPosted on 2009-06-17 at 15:42:19ID: 24653288

I mistakenly accepted the wrong answer for future readers
the correct answer should have been:
http://www.experts-exchange.com/Microsoft/Development/MS_Access/Q_24477889.html?cid=239#a24590232

20120131-EE-VQP-002

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