List of letters and numbers sorting

Hi i have a List array with dashes in format of: number (1-99)-Letter(a-z)-number(1-99)-Letter

and i am trying to sort this List

here are some examples:

90-A-4-C

90-A-5-C

10-D-7-V

10-G-19-A

10-G-20-A

30-W-1-K

--- the right arrangement should be:

10-D-7-V

10-G-19-A

10-G-20-A

30-W-1-K

90-A-5-C

90-A-4-C

--because first needs be sorted 1->99, then onto the second a->z, then onto third as group by odd then even, and finally last letter sorted by by a->Z

code example:

List90.Add(09,"A",4,"C","blahblah");

to no avail i have been tinkering with something like this:

var result90 = List90.OrderByDescending(a => a.l1).ThenByDescending(a => a.l2).ThenBy(a => a.l3% 2 == 1).ThenByDescending(a => a.l4);

Any suggestions? Thank you

also the numbers in the string: 90-A-4-C , are like 1,2,10 not 01,02,10

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

jason havelock9y ago
Figured out for anyone interested:
var result90 = List90.OrderBy(a => a.l1).ThenByDescending(a => a.l2).ThenByDescending(a => a.l3 % 2).ThenByDescending(a => a.l3 % 2 == 0 ? a.l3 : -a.l3).ThenByDescending(a => a.l4).ToList();

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