How to create drop-down menus for populating attributes

Collector for ArcGIS is a new smartphone application that can be used with ArcGIS Online to collect data in the field. Setting up a feature service in ArcGIS Online and adding it to a webmap will allow users to begin to collect new features, populating fields with relevant data via a pop-up form. This article explains how you can setup a Feature Service to make this functionality available through a drop-down menu.
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