ko.computed does not update

[nikos101]

How come the followButtonText doesn't update then isFollowing is changed?

     function AppViewModel() {

                this.toggleIsFollowing = function () {
                    this.isFollowing = !this.isFollowing
                };

                this.isFollowing = ko.observable(false);
                this.followButtonText = ko.computed(function () {
                    return this.isFollowing ? "Unfollow" : "Follow";
                });
            }

            ko.applyBindings(new AppViewModel());

[Dormilich]

there is not enough information (esp. about the ko instance) to say anything definite. it might be a scope issue, it might be that the methods do not do what you expect …

[nikos101]

this is all the code for KO in this app

<script type="text/javascript">
        $(document).ready(function () {


            function AppViewModel() {

                this.toggleIsFollowing = function () {
                    this.isFollowing = !this.isFollowing;
                    follow();
                };

                this.isFollowing = ko.observable(false);
                this.followButtonText = ko.computed(function () {
                    return this.isFollowing ? "Unfollow" : "Follow";
                });
            }

            ko.applyBindings(new AppViewModel());

        });
    </script>

and HTML element using that text:

 <button class="radius secondary button" data-bind="text: followButtonText,click: toggleIsFollowing"></button>

[Dormilich]

this.isFollowing = ko.observable(@Model.IsFollowing.ToString().ToLower());

which language is that? and what part thereof is JS?

if the posted code is everything and ko is supposedly a JS object, you will get a TypeError (ko is null or not an object).

[nikos101]

sorry that gets compiled to false serverside, its Razor asp mvc syntax

[Dormilich]

well, the question about the ko variable remains.

[nikos101]

sorry I don't get what you mean by ko var.

I just use it like this site:
http://learn.knockoutjs.com/#/?tutorial=intro

[Dormilich]

aah, now it makes way more sense.

[nikos101]

1000sandth post!"!!!!!!