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knockout ajax call data-BIND


knockout ajax call data-BIND

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knockout ajax call data-BIND
Tag : jquery , By : UpperLuck
Date : November 25 2020, 07:27 PM

I hope this helps . The idea of knockoutJS is to keep view and model separate. I would keep my header in html and then bind property
<div class="container">
<h6 data-bind="text: name"></h6>
</div>
export class ViewModel {
name = ko.observable('NAME PROPERTY');

constructor() {
    this.getDataAjax();
}

public getDataAjax() {
    var self = this;
    $.ajax({
        type: "GET",
        url: "http://localhost:4000/GetData",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            name(data.name); //assign data.
            console.log(data);
        }
    });
}
ko.applyBindings(viewModel, document.getElementById("IdProvidedToH6"));

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knockout.js - data-bind auto update after function call


Tag : development , By : Ernie
Date : March 29 2020, 07:55 AM
To fix this issue I have a case where I databind to a date field inside model in a list: , You could do something like
function Model(data) {
    var self = this;
    ko.mapping.fromJS(data, {}, this);

    this.formattedDate = ko.computed(function () {
       return formatDate(ko.utils.unwrapObservable(self.myDateField));
    });
}
<div id="fieldInModal" data-bind="text: formattedDate"></div>

jquery selectmenu does not work with knockout data-bind from ajax call


Tag : javascript , By : zac
Date : March 29 2020, 07:55 AM
hop of those help? I think you need custom binding with events of selectmenu. Please refer to following.
http://knockoutjs.com/documentation/event-binding.html

Bind viewmodel to ui after ajax call succeeds Knockout


Tag : knockout.js , By : Don Changer
Date : March 29 2020, 07:55 AM
I wish did fix the issue. First, kuddos for using the learn.knockoutjs.com example, amazing resource.
Your error is a common pitfall in KnockoutJS: you are modifying your model without updating the observables that are binded to it. See the following lines -
ko.mapping.fromJS(data, {}, self.Mails);
ko.utils.arrayForEach(self.Mails(), function (mail) { ... });
ko.utils.arrayForEach(self.Mails(), function (mail, index) { 
    // Add up the isSelected observable
    self.Mails()[index] = mail; 
});
ko.utils.arrayForEach(self.Mails(), function (mail) { ... });
ko.mapping.fromJS(data, {}, self.Mails);
// In any row inside your data
<td data-bind="text: ko.toJSON($data)">DEBUG DATA</td>

knockout data from AJAX call doesn't bind


Tag : javascript , By : Revision17
Date : March 29 2020, 07:55 AM
this will help Building on my comment, $.ajax doesn't return data - it returns a promise. You need to use that to actually get the data out:
var safeFloatCash = bankingApi.client.getSafeFloatCash();
safeFloatCash.done(function(d) {
    //may need to parse the data:
    //d = JSON.parse(d);
    self.safeFloatDenominations(d);
});

knockout data-bind with a function call


Tag : knockout.js , By : stan
Date : March 29 2020, 07:55 AM
I hope this helps you . I'm trying to call a function in data-bind but nothing seems to work. , The issue here is that you're mixing a string with a function call:
'background-image:url($root.FormatUrl(images[0]));'
'background-image:url(' + $root.FormatUrl(images[0]) + ');'
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