Is it possible to bind a Knockout observable property to a radio button using a value binding?
Here\'s what I\'m trying to do, but the value ends up being the string \"[
As documented here only Select nodes have the ability to bind an arbitrary JavaScript object to a value. Other inputs require a string value, which is why your value is returning "[Object object]".
You can still do what you want but you will have to manually map a key and find the appropriate object yourself. Here is a fiddle that demonstrates:
http://jsfiddle.net/jearles/JcPXy/