I would use the knockout mapping plugin. var jsonData = { id : 1, details: { name: “Johnny”, surname: “Boy” } } var yourMapping = { ‘details’: { create: function(options) { return Details(options.data); } } } function Details(data) { ko.mapping.fromJS(data, {}, this); } function YourObjectName() { ko.mapping.fromJS(jsonData, yourMapping, this); } This will create your object … Read more
I struggled with this for a couple minutes and found that this question hadn’t really been covered since the new binding context variables (like $index)had been introduced in knockout 2.1 The mistake I was making was that I simply forgot that $index itself is an observable, and must be unwrapped if we are using it … Read more
Since you persisted on stating that the lack of ko.observables is not an issue, I’ve looked at it closer. It seems, that you are correct! The change event is fired before the actual value is set. I’m afraid I do not know the reason for this. But there is an easy way to fix this: … Read more
When Knockout processes your bindings it first evaluates your expression. If the expression results in an observable, it then evaluates the observable as a convenience to get the final value that the if: works on. So the two following work identically <div data-bind=”if: foo”></div> <div data-bind=”if: foo()”></div> Once you leave the world of simple expressions … Read more
You have to call this function after insert dynamic HTML element ko.applyBindings(viewModel, elementContainingDynamicContent) Example here http://jsfiddle.net/rniemeyer/FCN5p/
The technique that you are using is the recommended approach for completely replacing the data in an observableArray. An observableArray is actually just a normal observable with extra functions added for useful array operations that act on the underlying array and trigger notifications.
Also knockout observableArray has interesting methods. Call removeAll to clear all items. Look at official site observable array manual. self.mycertificates = ko.observableArray([‘C1’, ‘C2’]); self.mycertificates.removeAll();
If the only purpose of your computed observable is to do a simple binding against it, then using a function would be equivalent. Bindings are implemented inside of a computed observable to track the dependencies, so it will re-trigger your binding when any of the observables change. Here are a few things to consider about … Read more
Knockout MVC is the bastard child of WebForms. It routes all viewmodel methods through controller actions, meaning everything that happens has to bounce to the server and back. I cannot understand why anyone would take a framework like knockout, which is intended to be CLIENT SIDE MVVM, and force it to call the server for … Read more
$index is an observable. So you need to use it this way : <span data-bind=”text: ($index() + 1)”> </span>