Overview of the current ComboBox controls in the UI Extensions project of which there are three:
ComboBox - Basic text based combo control
DropDownList - Enhanced version which allows an enhanced item template with images and id's
AutoComplete combo box - Text based list items which are filterable on user typing.
*Note, Unity 5.2 adds a new native Drop-down list control. We'll re-evaluate this when it's released.
https://bitbucket.org/UnityUIExtensio...