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Unable to make the contentEditable dynamicallly for inline editing in angular2+

here i am a issue
below is my json data:
info = [{
'id':1,'name': 'mr.x',
},{
'id':2,'name': 'mr.y',
},{
'id':3,'name': 'mr.z',
},{
'id':4,'name': 'mr.a',
}]
i am displaying this in the template
<div *ngFor="let x of info;let i = index">
<div id="{{x.id}}">
<div id="{{x.id}}">
</div>
<span [contentEditable]="content" id="{{x.id}}" > {{x.name}}</span>
<button id="edit" (click)="edit(x.id)">edit
</button>
here what i am trying is for each span element the {{x.name}} is display i want to change that name and so what i did was
edit(id){
this.content = true;
}
it is not working nothing editable
now my issues are how can i make it editable based on click event and how can i get the value of the span and display the change as the change has to go to the server and display
my stack link
https://stackblitz.com/edit/angular-gdqxwx

Trick here is you need to create a dynamic property based on index i.e PropertyName[i].
Code:
hideElement = {}; // declare in .ts file
Html:
<div *ngFor="let x of info;let i = index">
<div id="{{x.id}}">
<div id="{{x.id}}">
</div>
<span [hidden]="!!hideElement[i]" id="{{x.id}}"> {{x.name}}</span>
<input [(ngModel)]='x.name' type="text" [hidden]="!hideElement[i]" />
<button id="edit" [hidden]='hideElement[i]' (click)="hideElement[i]=true">edit </button>
<button id="save" [hidden]='!hideElement[i]' (click)="hideElement[i]=false">save </button>
</div>
working sample here

Use single observable for multiple rows in table

<div class="tbody" data-bind="foreach: displayItems">
<div class="t-row">
<div class="t-cell">
<div class="manage-location-buttons">
<a href="javascript:void(0)">
<i class="fa fa-pencil" aria-hidden="true" data-bind="toggleClick: $component.openEditPopup"></i> Edit
</a>
<div class="edit-table-popup" data-bind="visible: $component.openEditPopup">
<ul>
<li><a data-hash="#locationmanagement/managelocations/locationediting" data-bind="click: goToTab">Locations</a></li>
<li><a data-hash="#locationmanagement/managelocations/events" data-bind="click: goToTab">Events</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
It is my sample of custom table.
On Link click I will show edit-table-popup div like popup. Cause I use only one observable openEditPopup for all items, onclick I see popup for each row.
openEditPopup = ko.observable<boolean>(false);
toggleClick - is custom dirrective, which changes boolean value to opposite
Is it possible to use only one observable but to show popup only for clicked row?

Yes, it's possible.
The click binding sends two arguments to an event handler:
The clicked $data,
The click-event.
If your click handler is an observable, this means it calls the observable like so: yourObservable(data, event)
Knowing that an observable is set by calling it with an argument, you can imagine what happens. Note that knockout ignores the second argument.
The solution would therefore be to change the openEditPopup from containing a bool, to containing a displayItem, and changing the visible binding to:
visible: $component.openEditPopup() === $data
An example:
var vm = {
selected: ko.observable("A"),
items: ["A", "B", "C", "D"]
};
ko.applyBindings(vm);
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<p>Tabs</p>
<div data-bind="foreach: items">
<span data-bind="text: $data, click: $parent.selected"></span>
</div>
<p>Content</p>
<div data-bind="foreach: items">
<div data-bind="visible: $parent.selected() === $data">
<h1 data-bind="text:$data"></h1>
</div>
</div>

If I understand correctly, all your rows are bound to one observable and so when you click the row it is setting it to true and all pop ups are showing up?
If so, this would suggest you have a popup per row? I'd recommend changing this and having one popup that is toggled per row and then set it's data to the selected row. Something like this can be achieved with the code below.
var viewModel = function() {
var rows = ko.observableArray([
{id: 1, name: "gimble"}, {id: 2, name: "bob"}, {id: 3, name: "jess"}
]);
var selectedRow = ko.observable();
function showRowPopup(row)
{
//console.log(row.id);
if(selectedRow() == row)
selectedRow(null);
else
selectedRow(row);
}
return {
rows: rows,
showRowPopup: showRowPopup,
selectedRow: selectedRow
}
}
ko.applyBindings(new viewModel());
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<div data-bind="foreach: rows">
<div>
<span data-bind="text: id"></span> -
<span data-bind="text: name"></span>
<button data-bind="click: $parent.showRowPopup">Toggle Modal</button>
</div>
</div>
<div data-bind="with: selectedRow">
<h3>My Fake Modal</h3>
<span data-bind="text: id"></span> -
<span data-bind="text: name"></span>
</div>

List.JS - Cannot read property 'childNodes' of undefined

I cannot seem to figure this out. I've already tried $(document).ready and still doesn't work for me. I've also tried making a for loop specifically for these two value names to save the results to a var and pass it in that way. I've also tried putting the input with the class and id with search inside of the parent div and outside. Essentially like it in the nav bar. Using list.js & knockout.js btw. Im getting my venues using an ajax request using foursquares api.
JS:
var options = {
valueNames: ['name', 'category']
};
var userList = new List('search', options);
HTML:
<body>
<nav>
<h1 class="formattedH1">Downtown SA,TX</h1>
<span>
<input type="search" placeholder="Search" class="search" id="search">
<input type="button" class="sort searchButton" value="List"></input>
</span>
</nav>
<div id="map" class="map"></div>
<div class="list">
<input type="search" placeholder="Search" class="search" id="search">
<h1>My Top 5</h1>
<!-- Square card -->
<div class="card" id="favViewModel" data-bind="foreach: favList">
<div class="expand">
<h2 class="venueName" data-bind="text:name"></h2>
</div>
<div class="cardSupport" data-bind="attr: {src: image()}">
</div>
<div class="cardSupport" data-bind="text:address">
</div>
<a data-bind="attr: {href: website()}">Website</a>
</div>
<h1>Foursquare Recommended</h1>
<div class="card" id="recViewModel" data-bind="foreach: recommendedSpotList ">
<div class="expand">
<h2 class="venueName" data-bind="text:name"></h2>
</div>
<div class="cardSupport" data-bind="text:location">
</div>
<div class="cardSupport" data-bind="text:category">
</div>
<div class="cardSupport" data-bind="text:rating">
</div>
</div>
<script src="js/tester123.js"></script>

I fixed the same problem with some comments on the github page of the project, just make sure to have the same names as the examples and it will work, everything must be in a <div> and the ul must have the class list
Like this
<div id="hacker-list">
<ul class="list"></ul>
</div>
Link: https://github.com/javve/list.js/issues/9

I found my answer browsing other similar projects, so simple now. Thought it might help someone in case they ran across this. It was that since I was making an ajax call I had to to place the call to ko.applybindings inside the ajax request. The binding was out of scope, if you think about it make's sense especially if your request fails. Why even attempt to still bind the values of the request. HTML as above, and for JS ajax request please see below:
JS:
$.ajax({
url: 'https://api.foursquare.com/v2/venues/explore',
dataType: 'json',
data: 'data',
async: true,
success: function(data) {
venues = data['response']['groups'][0]['items'];
//This is where I had to place the binding to get it to render properly.
ko.applyBindings(new recommendedViewModel(), document.getElementById('recViewModel'));
},
error: function() {
alert("An error occurred.");
}
});

"Hello World" example of this error.
Where?
https://listjs.com/api/#listClass
listClass String, default: "list" What is the class of the
list-container.
Case one (Missing list class):
/* error example */
var options = {
valueNames: [ 'name', 'born' ],
};
var userList = new List('users', options);
<!-- error example -->
<div id="users">
<input class="search" placeholder="Search" />
<button class="sort" data-sort="name">
Sort by name
</button>
<ul data-missing-list-class class="">
<li>
<h3 class="name">John</h3>
<p class="born">1986</p>
</li>
</ul>
</div>
<script src="//cdnjs.cloudflare.com/ajax/libs/list.js/1.5.0/list.min.js"></script>
Case two (custom listClass missing):
I declare listClass to be no_such_class. The code trying to read childNodes of undefined.
/* error example */
var options = {
valueNames: [ 'name', 'born' ],
listClass: "no_such_class" /* the error */
};
var userList = new List('users', options);
<!-- error example -->
<div id="users">
<input class="search" placeholder="Search" />
<button class="sort" data-sort="name">
Sort by name
</button>
<ul class="list">
<li>
<h3 class="name">No such class</h3>
<p class="born">1986</p>
</li>
</ul>
</div>
<script src="//cdnjs.cloudflare.com/ajax/libs/list.js/1.5.0/list.min.js"></script>
**the error will not throw under stackoverflow snippet
Extra
Remember to not confuse between:
id or element
Id the element in which the list area should be initialized. OR the
actual element itself.
new List(id/element, options, values);
VS:
listClass
What is the class of the list-container?

Knockout Template in foreach access specific template item

I am populating a list of survey questions. On click of a survey question, a modal with graphs of the results pop up. To create my list I am using a knockout template as I need the afterRender function.
Here's my markup:
<div id="priorityMenuW" class="priorityMenuW shadow">
<div class="menuHeader">Select a Survey Question:</div>
<div id="priorityMenu" data-bind="foreach:questionTypes">
<div class="menucategory menuItem" data-toggle="tooltip" data-bind="text:CategoryName, attr:{title:CategoryName}"></div>
<div class="menuitem" data-toggle="tooltip" data-bind="foreach:$root.questions">
<!-- ko if: CategoryName == $parent.CategoryName-->
<div data-bind='template: { name: "question-template",
data:$root.questions,
afterRender: $root.storeQuestionIdOrder }'>
</div>
<!-- /ko -->
</div>
</div>
</div>
And my template:
<code><script type="text/html" id="question-template">
<div class="menuItem" data-toggle="tooltip" data-bind="html:'• '+ $parent.QuestionText, attr:{title:$parent.QuestionText}, css: {'itemSelected' : $root.isPriorityActive($data)}, click: function($data,event){$root.questionChoice($data,event)}"></div></script></code>
My problem is that by sending $data to the function questionChoice, I am receiving an array of all of the templated objects. How can I access the specific object clicked on? I was thinking maybe $data[$index], but that doesn't work.

if you want to use $data[$index], remember that $index is an observable and needs to be evaluated:
$data[$index()]

Knockout click event in Appframework header not triggering

I am making a Cordova/Phonegap app using Appframework and Knockout js for front and back end. The issue I am running into is occurring in the header of the firstly loaded panel.
The HTML:
<div id="afui">
<div id="content">
<!--CLASS LIST VIEW -->
<div class="panel" title="Classes" id="classList"
data-footer="none" selected="true">
<header>
<div style="float:right" data-bind="click:addClass"
class="button icon add white"></div>
<h1>Classes</h1>
</header>
<ul class="list" data-bind="foreach: classes">
<li data-bind="click:openClass, attr: { id: id, name: name }">
<a href="#categoryList">
<span style="padding-right:20px" data-bind="text: name">
</span>Grade:
</a>
</li>
</ul>
</div>
<!-- CATEGORY VIEW -->
<div class="panel" id="categoryList" title="Class Name">
<header>
<a id="backButton" href="javascript:;" class="button"
style="visibility: visible; ">Back</a>
<h1 data-bind="text: header "></h1>
<div style="float:right" data-bind="click:addCategory"
class="button icon add white">
</div>
</header>
<ul class="list" data-bind="foreach: categories">
<li data-bind="text:name"></li>
</ul>
</div>
</div>
</div>
So in the first panel of id="classList" the addClass button in the header does not get triggered when clicked, tapped, or any other sort of user interaction.
If I tap on a list item with a link to the panel of id="categoryList" and transition to that panel, the button in the top right of that header with event click:addCategory DOES work.
The only way I can get the addClass click event to fire is when I init my models...
ko.applyBindings(classModel, document.getElementById('classList'));
ko.applyBindings(categoryModel, document.getElementById('categoryList'));
is by not specifying the second parameter for the classModel ko binding. Of course this will be a problem, because I have multiple views and need to specify which container each of my models should observe.
VIEW MODELS
ClassModel:
function classInfo(name, id, parent) {
var self = this;
self.name = ko.observable(name);
self.score = ko.observable('');
self.id = ko.observable(id);
self.openClass = function(data, event) {
parent.currentClass(event.currentTarget.name);
};
}
function classListViewModel() {
var self = this;
//class array object
self.classes = ko.observableArray([]);
//current class name
self.currentClass = ko.observable().publishOn("currentClass");
//remove a class from the model
self.removeClass = function(obj) {
//remove the class
};
//add a new class to the model
self.addClass = function() {
//add a new using classInfo object
};
}
So, what is going on here? Is Appframework doing something weird to the header on the main page causing the click:addClass event to not fire?
Any insight/help would be much appreciate, thanks!