Trying to get main form to requery

I have this code in an afterupdate event of a combobox on a sub-form.  I want it to requery or refresh or whatever the data on the main form's current record but instead it is bringing the user back to the first record.  What am I doing wrong?

Private Sub cboClass_AfterUpdate()
    Forms!frmMainForm.Requery
End Sub

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SteveL13Asked:
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Scott McDaniel (Microsoft Access MVP - EE MVE )Connect With a Mentor Infotrakker SoftwareCommented:
You add a function to a form just like you do a standard module:

Function MyFunction()
  <code here
End Function

From there, you would call it just as you infer:

Me.Parent.MyFunction
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Eric ShermanAccountant/DeveloperCommented:
A Requery will do that.  You need to store the unique ID field of the current record and after the requery move the pointer back to that record as shown below ...

Dim rst as Recordset
Dim varCurrentID

set rst = me.RecordsetClone
varCurrentId = Me.ID
Forms!frmMainForm.Requery
rst.FindFirst "[ID] = " & varCurrentID
Me.Bookmark = rst.Bookmark


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Scott McDaniel (Microsoft Access MVP - EE MVE )Infotrakker SoftwareCommented:
Why would you requery the datasource after selecting a value in a combo? Requery refetches the recordset from the datasource, so I doubt you want to do that.

What's the goal of your combo? Are you using it for record selections? If so, and if the record will be located somewhere in the form's Recordsource, you can use the Bookmark method.
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SteveL13Author Commented:
The reason I need to requery the datasource of the main form is that after the combobox on the sub-form is updated there is a field on the main form that gets it's value from this code in the oncurrent event of the main form:

    Dim db As DAO.Database
    Dim rs As DAO.Recordset
    Dim strSQL As String
    Dim strMedClasses As String
    
    Set db = CurrentDb
    strSQL = "SELECT DISTINCT tblLOCALTempDrChromoPatientAndMedImport.ChronoID, tblLOCALTempDrChromoPatientAndMedImport.Class FROM tblLOCALTempDrChromoPatientAndMedImport WHERE tblLOCALTempDrChromoPatientAndMedImport.ChronoID = '" & Me.txtChronoID & "'"

    Set rs = db.OpenRecordset(strSQL)
    
    Do While Not rs.EOF
        strMedClasses = strMedClasses & ", " & rs.Fields("Class")
        rs.MoveNext
    Loop
    
    If Len(Trim(strMedClasses)) > 0 Then
        Me.txtMedClasses = Right(strMedClasses, Len(Trim(strMedClasses)) - 2)
    Else
        Me.txtMedClasses = ""
    End If
    
    Me.txtMedClasses2 = Me.txtMedClasses
    
    rs.Close
    Set rs = Nothing
    db.Close
    Set db = Nothing

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Using the first suggestion I am getting a "syntax error (missing operator) in expression".

Here is the after update code of the combobox on the sub-form:

Dim rst As Recordset
Dim varCurrentID

 Set rst = Me.RecordsetClone
 varCurrentID = Me.ID
 Forms!frmMainForm.Requery
 rst.FindFirst "[ID] = " & varCurrentID
 Me.Bookmark = rst.Bookmark

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Scott McDaniel (Microsoft Access MVP - EE MVE )Infotrakker SoftwareCommented:
Why don't you just run that code again when needed, from the Subform? You can add a function to the mainform, and call that function from the subform:

Me.Parent.NameOfYourFunction

If you must use the bookmark method:

Are you running this code on the SUBFORM? If so, then "Me" refers to the object in which the code is running. If you're running this on the subform, but intend to work with the recordset of the mainform, you'd have to do this:

Dim rst As Recordset
Dim varCurrentID

 Set rst = Me.Parent.RecordsetClone
 varCurrentID = Me.ID
 Forms!frmMainForm.Requery
 rst.FindFirst "[ID] = " & varCurrentID
 Me.Parent.Bookmark = rst.Bookmark
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SteveL13Author Commented:
I like this idea:

"Why don't you just run that code again when needed, from the Subform? You can add a function to the mainform, and call that function from the subform:"

 Me.Parent.NameOfYourFunction

But how do I add the function to the main form?  And then do I just add

Me.Parent.NameOfYourFunction

to the afterupdate event of the combobox?
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SteveL13Author Commented:
Perfect.  Thank you very much.
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Eric ShermanAccountant/DeveloperCommented:
Yes, as Scott pointed out you will need to add the .Parent because you are requiring the main form from the sub form.  

If you want to put the code on the main form and call it from the sub form then try this ... Put this in the VBA module of your main form.


Public Function ResetCurrentRecordID()
 Dim rst as Recordset
 Dim varCurrentID

 set rst = me.RecordsetClone
 varCurrentId = Me.ID
 Forms!frmMainForm.Requery
 rst.FindFirst "[ID] = " & varCurrentID
 Me.Bookmark = rst.Bookmark

End Function  

In the AfterUpdate Event of the combobox on your sub form enter the following:

Me.Parent.ResetCurrentRecordID


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Eric ShermanAccountant/DeveloperCommented:
Sorry ... I did not refresh my screen before posting.

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