Knockout.js not updating view from dynamic ajax call

Question

I am trying to get knockout.js to update my view after an ajax call but having no luck. I keep getting the error below. It errors at app.interactive.updateBindings. The parseBindingAttribute viewModel parameter is undefined.

Error:

Unable to parse binding attribute. Message:
ReferenceError: interactive is not defined;
Attribute value: template: { name: 'answerTmpl', foreach: interactive.answers }

Dynamic HTML:

<div id="questions">
    <div id="answers" data-bind="template: { name: 'answerTmpl', foreach: interactive.answers }">
    </div>
</div>

<script type="text/javascript">

    app.viewModel.interactive.answers(@Html.Raw(@Model.Answers.ToJson()));
    app.interactive.updateBindings(document.getElementById('answers'));

</script>
<script id="answerTmpl" type="text/html">
<div>
  <span></span>  <input type="checkbox" name="Answer" />
</div>
</script>

My .js file:

(function (app, $, undefined) {

    app.viewModel = {};
    app.interactive = {};
    app.interactive.callback = function () { };

 app.viewModel.interactive = {
        content: ko.observable('test'),
        answers: ko.observableArray()
    };

        app.interactive.init = function () {

        ko.applyBindings(app.viewModel);
    };

    app.interactive.updateBindings = function (element) {
        ko.applyBindingsToNode(element);
    };

    app.interactive.init();

})(window.app = window.app || {}, jQuery);

I can fixit with the below code:

ko.applyBindingsToNode(element, null, app.viewModel);

But now I am getting this error:

invalid 'in' operand jQuery.template

if (templateId in jQuery['template']) 

Answer 1

I feel like an idiot. I didn't even reference the jquery template script.

Answer 2

It looks a little confusing. You have app.viewModel.interactive and then app.interactive. I could well be missing something but would you try to applyBindings to more simply namespaced viewmodel and work up from there?