In order for a drop-down list of coded values to display when updating a feature, what must be done in the Attributes window?

The requirement for a drop-down list of coded values to appear in the Attributes window when updating a feature relies on the assignment of a domain to the field in question. Specifically, assigning the FishSpecies domain to the Fish field defines a set of permissible values that can be selected when editing that field. This means that the Fish field is constrained to only allow specific entries defined by the FishSpecies domain, which is presented to the user as a drop-down list. This ensures data integrity and uniformity across the dataset, as users can only choose from pre-defined options rather than entering free-form text that could lead to inconsistencies in data entry.

Assigning a default value, selecting the Fish field, or creating a new range domain, while potentially useful in other contexts, do not facilitate the display of a coded value drop-down list in this scenario. Thus, assigning the appropriate domain is a critical step in enabling that functionality.