I'm trying to make checkbox enabling with dependencies.
I'd like to enable a checkbox if some of two input fields are not empty.
and it works perfectly for initializing.. here is printscreen<http://linkme.ufanet.ru/images/28643b48c85a8727e2fdda0765f9dcc4.png>.
But it doesn't work with changes, i mean that after you filling any of
empty field it doesn't enable.

Here is this question on stackoverflow<http://stackoverflow.com/questions/13335762/knockout-checkbox-enable-...> with
code listings.

You must or use computed observable, or subscribe to changes. Your function
not notify other model about change.

As I think:
1. You need contact class
2. In class Contact you need computed observable Is_Enabled
3. Get data from server and produce array of Contact elements
3. Do binding
4. Get fun.

2012/11/12 <ivanovvva...@gmail.com>