Can you Nest Enums?
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Can you Nest Enums?

Someone asked me "is there a way to nest Enums in .Net?" This crazy tree-of-life example is what i came up with... anyone got a better idea?





'Steve in Korea' on Fri, 13 Aug 2004 03:26:28 GMT, sez:

It appears that you're attempting to follow taxonomy, which goes (Phylum or Division), Class, Order, Family, Genus, Species, but the "Domestic" is throwing everything for a loop.

Taxonomy relates bears to dogs to chimps to humans:
Phylum: Chordata
.. Class: Mammalia
.. .. Order: Primates
.. .. .. Family: Hominidae (Great Apes)
.. .. .. .. Genus: Homo
.. .. .. .. .. Species: sapiens (Humans)
.. .. .. .. Genus: Pan
.. .. .. .. .. Species: troglodytes (chimpanzee)
.. .. .. .. .. Species: paniscus (pygmy chimp)
.. .. .. .. Genus: Pongo (orangutan)
.. .. .. .. .. Species: Pongo pygmaeus (orangutan)
.. .. Order: Carnivora
.. .. .. Family: Canidae (Dogs)
.. .. .. .. Genus: Canis
.. .. .. .. .. Species: lupus
.. .. .. .. .. .. Subspecies: familiaris (domestic dog)
.. .. .. Family: Ursidae (Bears)
.. .. .. .. Sub-family: Ursinae
.. .. .. .. .. Genus: Ursus
.. .. .. .. .. .. Species: maritimus (polar bear)
.. .. .. .. .. Genus: Melursus
.. .. .. .. .. .. Species: ursinus (sloth)

The double periods is where you need to stick your Namespace/Enum statements.

(Sorry about the spacing, but the "no html" rule prohibits the use of the "pre" tag, which would have made this a bit cleaner.)



'secretGeek' on Fri, 13 Aug 2004 04:33:44 GMT, sez:

cheers Steve -- very clever way of overcoming the non-html rule.

yeh i know my taxonomy was all wrong -- it's more the implementation method I'm interested in.

But thanks for mentioning taxonomies -- i find this stuff fascinating. I just spent a little while looking through the "Tree of Life"" website -- a good starting point is: at "http://tolweb.org/tree/home.pages/popular.html"

i looked through it a few years ago -- it's much better now.

lb



'Steve in Korea' on Fri, 13 Aug 2004 06:10:18 GMT, sez:

This one's pretty detailed, too.

http://animaldiversity.ummz.umich.edu/site/accounts/ classification/path/Homo.html.html

(.html.html isn't a typo)



'Mike in Denver' on Fri, 13 Aug 2004 12:22:14 GMT, sez:

Oops - you left out johnkerry from the Animals.Mammals.primates.apes.lesserApes.baboons



'secretGeek' on Sun, 15 Aug 2004 05:08:04 GMT, sez:

cheers denver mike... yep there's a lot of items missing from that particular namespace.

To be more accurate i should've placed politicians under the chordata phylum, in the subphylum Urochordata, alongside sea squirts and tunicates.

But there just wasn't time to place all the non-vertebrates in their correct alignment.




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