Я пытаюсь привязать данные к validatedObservable, но элемент управления не выглядит обновляемым, как другие наблюдаемые нокауты.
Поиграйте здесь, http://jsfiddle.net/EricHerlitz/x7UUg/
Краткое объяснение
// variable with the data bound observable
that.validationErrors = ko.validatedObservable();
// Elements to validate
var validationGroup = {
email1: that.email1,
firstName: that.firstName
};
// Trying to use the validatedObservable in a normal knockout way doesn't work
that.validationErrors(validationGroup);
// This will fill the variable with the observable result but as usual when performing this pattern the viewmodel must be rebound.
that.validationErrors = ko.validatedObservable(validationGroup);
Источник
<h3>Registrering</h3>
<div class="form-group">
<label for="Email1">E-postadress</label>
<input data-bind="value: email1" id="Email1" class="form-control" placeholder="E-postadress (du kommer få lösenords-länk skickad hit)" />
</div>
<div class="form-group">
<label for="Firstname">Förnamn</label>
<input data-bind="value: firstName" id="Firstname" class="form-control" placeholder="Förnamn" />
</div>
<button type="button" class="btn btn-primary" data-bind="click: registerClick">Registrera</button>
<div class="alert alert-danger" data-bind="visible: !validationErrors.isValid()">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
<h4>There be dragons!</h4>
<div data-bind="foreach: validationErrors.errors">
<div data-bind="text: $data"></div>
</div>
</div>
Js
var GK = GK || {};
GK.VM = GK.VM || {};
GK.VM.Member = function (template) {
/*** Private variables ***/
var that = this;
/*** Public variables ***/
that.validationErrors = ko.validatedObservable();
// variables with validation, https://github.com/Knockout-Contrib/Knockout-Validation
that.email1 = ko.observable().extend({
required: { params: true, message: "missingEmail" },
pattern: { params: /^([\d\w-\.]+@([\d\w-]+\.)+[\w]{2,4})?$/, message: "wrongEmailFormat" }
});
that.firstName = ko.observable().extend({
required: { params: true, message: "missingFirstName" }
});
that.registerClick = function () {
// Elements to validate
var validationGroup = {
email1: that.email1,
firstName: that.firstName
};
// This would be ideal but doesn't work
//that.validationErrors(validationGroup);
//console.log(that.validationErrors.errors()); // does not contain any erros
// This will destroy the data-bind but register the validatedObservable
// Requires rebinding of the control :(
that.validationErrors = ko.validatedObservable(validationGroup);
console.log(that.validationErrors.errors()); // contains errors
};
};
var viewModel = new GK.VM.Member();
ko.applyBindings(viewModel);
Любые советы, как справиться с этим? Спасибо.
validatedObservable
? Вы хотите проверить разные части вашей модели на разных действиях? - person nemesv   schedule 24.02.2014validationErrors
в начале и создал наблюдаемуюshowErrorMessages
и использовал ее, чтобы показать скрытие ошибок: jsfiddle.net/jJ9JS/1 - person nemesv   schedule 24.02.2014