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I have a category structure of Places within Regions. I want to show a list of Region categories in a dropdown list then populate a second dropdown of the Places in the first selection in an input form.

Secondly, I want to be able to make multiple selections so I end up with Place, Place etc.

I can generate the first dropdown, but cannot see how I use that selection to populate the second.

本文标签： categoriesPopulate dropdown based on selection of parent category

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