Take the 2-minute tour ×  We have a UI requirement, where users
need to be able to create several ranges from 0-1000.  Without
overlap (including overlap from other parent records)  So,
parent 1, has range 0-10, 20-30, 50-55.  Parent 2 is being
created, the values parent 1 has chosen are to be unavailable.
There could be dozens of ranges per parent.  Free-text, though
my preferred option, has been shot down.  I don't like a long
list of 1000 numbers, where you disable already selected values,
and allow them to pick all the values that are allowed. But it's
not "range based", so I don't like it.   share|improve this
question So in your example where you have those ranges for
parent 1: then for parent 2, the range 11-19 and 31-45 would be
ok, but 15-45 would not, correct? –  Roger Attrill Dec 20 '12 at
21:18 Roger, Roger. (sorry, had to) –  CaffGeek Dec 20 '12 at
21:24 This looks like a great question, but more context would
help. Would users prefer continuous ranges? And if those aren't
available then consecu