CODEWITHSUNDEEP
ajaxasp.net-mvc-4knockout.jsviewmodel
Sam
Sam

Reputation: 14596

binding new DOM elements to viewmodel after AJAX call

I'm having troubles binding new DOM elements to my viewmodel. This elements are in a partial view loaded using an AJAX call (see the customizeQuote function below). 

$(function () {
var mvcModel = ko.mapping.fromJS(initialData);

function QuoteViewModel() {
    var self = this;

    self.customizeQuote = function (quote) {
        self.selectedQuote = quote;

        //remove the disable attribute on all form controls before serializing data
        $(".step").each(function () {
            $(this).find('input, select').removeAttr('disabled');
        });

        //convert form data to an object 
        var formData = $('#etape').toObject();

        $.ajax("getSelectedQuote", {
            data: ko.toJSON({ model: self.selectedQuote, model1: formData }),

            type: "post", contentType: "application/json",
            success: function (result) {

                $("#custom").html(result);
                $("#etape").formwizard("show", "customize");
                ko.applyBindings(self.selectedQuote, $("#covers"));

            }
        });
    }
}

var myViewModel = new QuoteViewModel();
var g = ko.mapping.fromJS(myViewModel, mvcModel);    
ko.applyBindings(g);
});

Here's the partial view html:

@model QuoteViewModel
<table id="covers">
<thead>
    <tr>
        <th>
            ProductName
        </th>            
    </tr>
</thead>
<tbody data-bind="foreach: CoverQuotesViewModel">
    <tr>
        <td>
            <input data-bind="value: ProductName" />
        </td>          
    </tr>
</tbody>
</table>

the line:

ko.applyBindings(self.selectedQuote, $("#covers"));

triggers an error:

"ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node"

I'm fairly new to knockout and I don't see what I'm doing wrong. Any idea ?

Upvotes: 3

Views: 2392

Answers (1)

Travis J
Travis J

Reputation: 82337

$("#covers") is not a DOM node though, it is an jQuery object. Perhaps try using this instead:

ko.applyBindings(self.selectedQuote, $("#covers")[0]);

The [0] will get the first matched element of the selector in the jquery object.

Upvotes: 7

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