CODEWITHSUNDEEP
knockout.jsknockout-2.0
praveen
praveen

Reputation: 351

How bind observable of observable in knockout js

I have function like 

function Configuration(data) {
var self = this;
self.configKey = data.pKey;
self.configName = data.configName;
self.configNumber = data.modelnumber;
self.configMTP = ko.observable(data.mTP);
self.configMDP = ko.observable(data.mDP);
}

And my view model like

function AppViewModel() {
var self = this;
self.Configurations = ko.observableArray([]);
self.selConfig = ko.observable();
}

And binding is like below

  <select data-bind="options:categories,optionsCaption:'All',value:selCatgy ">
  </select>

The Configurations array in the viewmodel has the list of configuration objects. When user selects particular configuration the selected 'selConfig' property is getting updated with selected configuration object.. Now if i want to bind the other properties(like configMTP,configMDP) in the screen from 'selConfig', is it possible to do?

I did something like below. Is there any other way we can achieve the same?

 <!-- ko foreach:selConfig-->
    <pre data-bind="text: configMTP"></pre>
    <input data-bind="value: configMDP" />
    <input data-bind="value: configName" />
 <!-- /ko -->

Thanks,

Praveen.

Upvotes: 0

Views: 72

Answers (1)

nemesv
nemesv

Reputation: 139798

If you want to bind to one objects properties you need to use the with binding instead of the foreach:

<!-- ko with: selConfig -->
    <pre data-bind="text: configMTP"></pre>
    <input data-bind="value: configMDP" />
    <input data-bind="value: configName" />
 <!-- /ko -->

Upvotes: 1

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