Returns an array of display values for the list, optionally formatted for the user's locale.
Each entry within a list contains a display value (the value displayed to the user) and a
return value (the value returned to the server when a selection is made - this becomes the field value).
Each entry within a list contains a display value (the value displayed to the user) and a return value (the value returned to the server when a selection is made - this becomes the field value).
The corresponding return value can be obtained with method #getReturnValue(String).