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Filter Choices for Combo Box based on another Combo Box choice

I have connected a Sharepoint list and I am using a form to edit that list. I would like to filter or in some way modify the values shown in one combo Box based on the selection the the first combo box. After i've done that i'd like to do the same thing with a third one but filter based on the second selection. 

I'll be doing this for plants with different lines that each of the lines have differnt areas. So the first box would be plant selection, second would be line selection and third would be area selection

Plant 1-> Line1, Line2

Plant 2-> Line 3, Line 4

Plant 3-> Line 5, Line 6

Line1-> Area 1, Area 2

Line2-> Area 3, Area 4

and so on and so on


Please help I really can't firgure this one out. I used to do this in Access super easily with a reference table but i'm not sure if that is still possible with this. 





Re: Filter Choices for Combo Box based on another Combo Box choice

I don't think you need Edit form. You could bind each of the comboboxes to respective lists directly and then craft the search formulas on each of them based on the selected item from the previous combobox in the chain. There's also a great article on how to optimize the performance for cases when multiple controls are bound to lists:

I hope that helps.

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