Let's say I have a grid with information about 5000 people.
Also, I have a dropdown with the list of foods above the grid with the label:
"Filter people by favorite food"
Should I filter dropdown values to only those represented in the grid?
I mean, let's say I have 30 foods in the dropdown initially, but those 5000 people in the grid only use 5 different foods. Should I limit my dropdown to 10 existing items, this way users will never get an empty grid when filtered?