If I have a field with a select_multiple SymptomsChecker and someone selects "Other" how can I gray out the None choice from being selected?
You cant but you can use a constraint to yell at them. So like this If (selected = other, != None,1).
See more at my post here
https://community.esri.com/thread/191518-remove-an-entry-or-item-from-the-dropdown-list-after-it-has-been-picked-once
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