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Old July 29th, 2004, 09:00 AM
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Default Command Button VB Code

I have a Form that displays account name and number with a sub form that displays sales information for a specific account, selected by the main form combo box. The form is based on a multi table query.

What I would like to do is put some code behind a command button, that updates one field in all the records - eg Archive which is a true/false field. eg I have ten records of sales information displayed that I would like to set the archive field to true (basically updating the underlying table of sales info)

Does anyone have any ideas - it would be greatly appreciated

taraj

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Old July 29th, 2004, 01:51 PM
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The button's On Click event would basically have a RunSQL command such as this:

DoCmd.RunSQL "UPDATE tblMyTable SET tblMyTable.fArchive = True;"

Where you put your names instead of tblMyTable and fArchive.

Greg Serrano
Michigan Dept. of Environmental Quality, Air Quality Division
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Old July 29th, 2004, 02:22 PM
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Taraj:

Another way to go...

Every bound form in an .mdb is always bound to a DAO recordset. You can clone a sub form's recordset in code, and update any field values you like. Calling the Update method on the cloned recordset automatically updates your bound form. No requery necessary.

~~~~Code~~~~

Private Sub Command0_Click()
    Dim rst As DAO.Recordset

    ' Clone the sub form's recordset
    Set rst = Me!fsubChildren.Form.RecordsetClone

    rst.MoveFirst

    ' Update sub form field values
    With rst
      .Edit
      !Archive = True
      .Update
    End With

End Sub

HTH,

Bob



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Old July 29th, 2004, 02:59 PM
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Note:

One advantage of the clone appraoch is the cloned recordset contains only the records currently displayed in the subform, already filtered by the parent form's primary key;

Greg's approach works fine too, but since you're using a parent/child relationship, be sure and add a where conditioin to your update statement.

DoCmd.RunSQL "UPDATE tblMyTable SET tblMyTable.fArchive = True " & _
             "WHERE tblMyTable.YourLinkChildField = " & Me!fsubChildren.Parent.YourLinkMasterField

Execuing a SQL statement will also require refreshing the subform with either of the following:

Me!fsubChildren.Form.Refresh
Me!fsubChildren.Form.Requery

HTH,

Bob

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Old July 30th, 2004, 03:51 AM
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Guys
Thanks very much for the information - off to try it now - will get back if any problems

Taraj



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Old July 30th, 2004, 05:19 AM
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Bob

This is the code that I have used as per your advise - Have I got it entered correctly as the .edit fails? I've probably done something stupid

Dim rst ADODB.Recordset

       Set rst=Me!Archive_Sales_Subform1.Form.RecordsetClone

       rst.movefirst

With rst

       .edit
       !Archive = true
       .update
End with

Your help would be greatly appreciated

Tara J


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Old July 30th, 2004, 05:54 AM
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Hi Taraj,

Bound form's in .mdb projects use a DAO recordset (not ADO). The RecordsetClone property copies this native DAO recordset object and returns a reference to the copy:

Dim rst As DAO.Recordset

Access's default data access object library is ADO 2.x, but bound foms in .mdbs still use DAO recordsets. Its one of those things Microsoft never got around to rearchitecting. (The RecordsetClone property in an .adp project does return a reference to an ADO recordset.)

Set a reference to the Microsoft DAO 3.6 Object Library if you havn't.

HTH,

Bob

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Old July 30th, 2004, 08:46 AM
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Bob

Thanks for the information - I've set the references up as required.

However I get a can't find field error message on the following:

set rst=Me!Archive_Sales_Subform1.Form.RecordsetClone

The Archive_Sales_Subform1 = Form Name
Field to change is Archive

If I do set rst = RecordsetClone - the button works and checks only the first record on the form.

Could you advise me if I have the syntax right on your suggested code

Many thanks

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Old July 30th, 2004, 11:41 AM
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Hi Taraj,

Quote:
quote:However I get a can't find field error message on the following:
I was able to reproduce your error by misspelling my subform name, though there may be other causes:

   Run-time error '2465' : Microsoft Access can't find the field 'fssubChildren' referred to in your expression."

Should the '1' be there in your subform name?

The subform reference syntax is correct. The fully qualified version would be:

set rst = Forms("frmParentForm").Controls("Archive_Sales_Sub form1").Form.RecordsetClone

"Archive_Sales_Subform1" references the subform container control, 'Form' references the actual subform object the subform control contains, and whose properties are exposed. The Controls collection is the default property of the Form object, so it doesn't need to be referenced explicity.

Quote:
quote:the button works and checks only the first record on the form.
I initially ran my code against a recordset that contained a single record. To iterate through all the records in the subforms recordset use:

' Update sub form field values
With rst
   Do Until .EOF
      .Edit
      !Archive = True
      .Update
      .MoveNext
   Loop
End With

Also, here's a little debugging routine to view the records in your recordset while you're working in the code window:

' Clone the sub form's recordset
Set rst = Me!Archive_Sales_Subform1.Form.RecordsetClone

rst.MoveFirst

' Dump recordset to debug window
Do Until rst.EOF
   For Each fld In rst.Fields
     Debug.Print fld.Name & vbTab & fld.Value
   Next
   rst.MoveNext
Loop

rst.MoveFirst ' Return to first record in recordset before processing.

Let me know if this helps.

Bob



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Old July 30th, 2004, 01:02 PM
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Bob

Many thanks for your help - it has worked perfectly





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