Forum Discussion

NeilBost's avatar
NeilBost
Copper Contributor
Dec 30, 2020
Solved

Can I Use the VLOOKUP Formula to Return a Data Validation Drop Down List?

I'm wondering if it's possible to use the VLOOKUP formula to return an entire Data Validation List (with all possible options), not just the value that is currently selected.

 

In the attached example I'm using VLOOKUP to automatically fill in the instructor names of various courses by reading the entered course name (Column F) and returning the corresponding instructor (column G) based on the course/instructor list (Table 1). This works for all courses with only 1 possible instructor, but not with the "Math" course which has three possible instructors, which I've captured using a Data Validation List. Is it possible to use VLOOKUP to copy the whole list of the three possible instructors so that I could choose which one taught the course on a particular day?

  • JMB17's avatar
    JMB17
    Jan 06, 2021

    NeilBost 

     

    No, you can't use VLookup, but you could still add data validation. The caveat is that you can't have user input and a lookup formula in the same cell, so you would need to add a column for user selection from the data validation list. Then, using an IF formula in the instructor field, you can perform a lookup when there is only one instructor, or pull from the user's selection from the data validation when there is more than one. 

     

     

11 Replies

  • I feel like I have a similar question. I have inherited a spreadsheet with lots of formulas and macros. It's effectively a new employee form that auto populates as soon as a position is selected from a drop down.

     

    I am grabbing it from a step before and using MS forms and Power query to get 5 basic bits of info and want them to then fill the form and autopopulate from that step. 

     

    My first most basic observation seems to be that putting "=othersheet$A$2" in the dropdown controlled cell creates an issue, even if what it displays is in the dropdown parameters.

     

     

  • adversi's avatar
    adversi
    Iron Contributor

    NeilBost 

    VLOOKUP only returns the first instance in the match. A better alternative is to create a new column in Table 1 that can be used a reference for future lookups. This can be a Unique ID for the courses.

     

    Now when referencing Courses in Table 2, the Unique ID will always return the respective instructor even if the course list is repeated, since the Unique ID is unique. That is the essence of working with relational databases in Excel.

    • NeilBost's avatar
      NeilBost
      Copper Contributor

      adversi 

      Thank you for your reply. I don't think your suggestion solves my problem, but what I'm hearing is VLOOKUP can't be used to return a whole data validation list. I'll just have to change each entry that had multiple possible instructors manually. Thank you again for your time.

      • JMB17's avatar
        JMB17
        Bronze Contributor

        NeilBost 

         

        No, you can't use VLookup, but you could still add data validation. The caveat is that you can't have user input and a lookup formula in the same cell, so you would need to add a column for user selection from the data validation list. Then, using an IF formula in the instructor field, you can perform a lookup when there is only one instructor, or pull from the user's selection from the data validation when there is more than one. 

         

         

Resources