[ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Zope Products

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A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/Products.stx#4-38

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        For 'selection' and 'multiple selection' properties, you must
        include an addition item in the property dictionary,
        'select_variable' which provides the name of a property or
        method which returns a list of strings from which the
        selection(s) can be chosen. For example::

          _properties=({'id' : 'favorite_color', 
                        'type' : 'selection',
                        'select_variable' : 'getColors'
                       },
                      )

          % Anonymous User - Aug. 23, 2002 11:00 am:
           Could we have an example of the property or method 'getColors' please? I cannot figure out how to create the
           options list and nominate the default selected item.

          % Anonymous User - Oct. 28, 2002 6:33 am:
           I second that!