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Ron_2510's avatar
Ron_2510
Copper Contributor
Jul 04, 2022
Solved

How to Hide Previously Used Item(s) In Dropdown List?

I have sheet that makes certain Data Validation Lists available based on how the source cell is populated. Their are three dropdown lists that can be used. Here is a sample of the DataValidation form...
  • mtarler's avatar
    mtarler
    Jul 05, 2022

    Ron_2510  I think I understood.  I have attached a sample sheet using the formulas I mentioned except I moved the 'helper lists' down to row 10 instead of A4 and B4 to give some space.  They can really go anywhere.  As I noted if the additional drop downs are 'together' you can reference that range but if not, I suggest you create another set of helper cells.  For example if your other drop downs are in C5 and E7 then in the helper list use the formula =C5 and =E7 so in the COUNTIF formula inside the FILTER formula you can reference a single range as I demonstrate in the attached.  

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