Knockout-Contrib/Knockout-Validation

Validation on nested objects not working after changing whole object

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#398 aberto em 28 de jan. de 2014

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Description

Hi, I have a problem with validating nested objects. I have following view model:

      var ViewModel = function (first) {
           this.person = ko.observable(new Person(first));

           this.changePerson = function () {
               this.person(new Person("changed"));
           };
      };

      var Person = function (first) {
           this.firstName = ko.observable(first).extend({
                required: true
           });
      };

everything works as expected as long as I do not call changePerson function. After calling change if I have element with data-bind="person().firstName" validation messages will not show. Working example (http://jsfiddle.net/MDhUR/). I found a work round to this issue - if I use to bind to firstName everything works as expected (http://jsfiddle.net/seRr5/1/) .

regards.

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