Knockout - is it possible to combine standard select bindings with a custom binding?

Answer 1

I think that your problem is in the chosen plugin itself. When you apply .chosen on your select tag it changes its markup(it's not longer a normal html select).
So in your bindning your apply chosen custom binding first which then change the html markup and so your binding are not working properly..

To solve that problem you need to apply your custom binding last not at first .. so that ko binding are applied normally then your custom binding is applied and change your select(but now you have built your select properly)

Update

to run function after the option elements are generated you can use optionsAfterRender callback .. Check out the documentaion here

Another dirty solution is to use settimeout