Adding fields on a Subform and getting results on the Mainform

You can have calculated fields on the main form that refer to the subform.
This is a good reference for the subject.
The one you want is:
       =Me!Subform1.Form!ControlName

You can refer to totals in the footer of the subform using this method, or you can have a button on the subform that does something like
me.parent.requery
if the subform is bound to data that the main form is also based on.

I am still unclear.  I would like the sum of the field from the subform in a textbox on the mainform

I am inputting numbers on the subform...

It seems your are saying, your subform is continuous type where the values in a certain field can be edited. Based on this assumption you can try the following.

Let's say the name of this text box in the subform is txtValuesToEdit (with matching field name of ValuesToEdit in its table). From the Private Sub Form_AfterUpdate() event of  the subform fire UpdateSum  shown below (assuming the main form is also has txtSum on it):

Private Sub UpdateSum()

    Dim rs As DAO.Recordset
    Dim total As Variant
    Set rs = Me.RecordsetClone
    If rs.RecordCount > 0 Then
      rs.MoveFirst
      Do Until rs.EOF
        total = total + Nz(rs!ValuesToEdit)
      rs.MoveNext
    Loop
    End If
    Parent!txtSum.SetFocus
    Parent!txtSum.Text = total
    
End Sub

Private Sub Form_AfterUpdate()
   UpdateSum
End Sub

Private Sub Form_Current()
   UpdateSum
End Sub

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Also, add UpdateSum to Private Sub Form_Current() of the subform so that upon opening the form it would show the total amount.

Mike

Pat,

ControlSource = SubformName!txtSum was the key I missed.

First I started using sum in the subform footer pushing it to the parent form but there was sort the delaly (it showed older sum not the most recent).

With your solution, I think there is a need to have Parent.Refresh in the after update event of text box being edited. hopefully it will work then.

It is possible, your solution also have the delay problem.

Mike

Thanks!