Hi,
I am trying to build a form with cascading multi-choice list boxes. I am using the dictionary to do that. I am almost there: When making a selection in listbox1, the right items are being selected in listbox3. In the same fashion when making a selection in listbox2, the right items are being selected in listbox3. What I don't manage to do for some reason is to get listbox1 to make selections in listbox2.
Thanks for your help!

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Data.JPG

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