How to update a combo box in a sub-form from a combo box on a main (single) form

[Me nnell I]

I have a single record form with a combo box to update a field.
The form contains a sub-form with a solitary combo box to be able to select a sub-group of the combo box on the main form.
I have the following code in the row source of the subform:

SELECT [Class Times].[Class ID], [Class Times].Class
FROM Members LEFT JOIN [Class Times] ON Members.Class = [Class Times].Class
WHERE ((([Class Times].Class)=[Forms]![Form - Current Members]![Class]));

When I change the combo box on the main form the combo list on the subform doesn't refresh? I have tried the following code in the AfterUpdate event of the first combo but it just says it can't find the form?

Private Sub Class_AfterUpdate()
    Forms![Form - Class Register Subform]![Class ID].Requery
End Sub

Any help on this would be great?

[nico5038]

I would start with renaming your forms using no special characters (like the minus sign "-" and spaces " ").
Access acts sometimes strange on the minus sign :-(

Next use to requery the subform:

Me.sfrmName.Requery

Replace the sfrmName with the name of the subform as recorded in the properties!

Nic;o)

[NeoPa]

Nico's on the button with this one - except the spelling of .Requery is all.

[Me Nell I]

Many thanks for the replies guys. sorted it now. :-)