Hiding navigation buttons on child subform code only works once

[newbieX]

I have an Access 2010 form that has a child subform based on a query. I am trying to hide the navigation buttons for the subform.

Private Sub Form_Open(Cancel As Integer)

    'Me.Form.NavigationButtons = False
    Me.Child001.Form.NavigationButtons = False

End Sub

Private Sub cmdCloseForm_Click()
    'Me.Form.NavigationButtons = True
    Me.Child001.Form.NavigationButtons = True
End Sub

The parent form's Navigations Button property is set to No, as is its Record Selectors. The problem I am having is that the navigation buttons is hidden the first time I open the form after adding/altering the code but then displays each subsequent opening of the form. Changing the properties back when closing does not seem to make a difference.

Ideas as to why this is happening and how I can fix it?

Many thanks in advance.

[June7]

Open event has code to hide the buttons but if the property is set to No in design, why do you need code?

[newbieX]

For some reason, not all the parent form's properties transfer to the child form when the child form is a query datasheet. Like I said, works once and then never again. Even if I exit and reopen database. Weird.

[June7]

I never use tables and queries as subform SourceObject. Tables and queries don't have NavigationButtons property. I am surprised your code works at all if the SourceObject is a table or query.