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>The problem comes when the user saves changes to an address. This could include a change to the address description, which is what the listbox displays, therefore the listbox has to be Requeried. If the UI object to be generic and independant, it cannot know about the existance of the list box on the form. I therefore just call a THISFORM.Refresh(). In the Refresh() of the form, I update the list box by doing a Requery() etc.

It depends of course why this independance is needed, but I guess independence does not exclude exchange of messages. Practically your UI object could have a property that knows the state of the listbox (considered here as an associated, friend object). In this way you can have this control order the requery when needed, based on an event that would have to come from the form.

Marc