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Inserting script for bootstrap popover

I have a bootstrap 4 popover with list inside which comes from a viewcomponent element (asp net core 3.1 project).
This popover is inside layout navigation bar (not sure if that's relevant) and after hovering over it the list should appear.
Now every list element appears correctly but after I click any of the list elements I want to send ajax post request but I cannot make my javascript work. I am not sure what is the problem. Is it because my script is only loaded when I hover on popover? Am I using events incorrectly? I tried a lot of variations to test if JS is working and seems like everything failed.
ViewComponent:
#model mymodel;
<div class='list-group'>
#foreach (var item in Model.Item)
{
<a href='#item.Url' class='btn list-group-item list-group-item-action mb-1'>You have been invited to join event: <b>#item.Name</b></a>
}
#foreach (var item in Model.AnotherItem)
{
<a id='lmao' href='#' onclick='doSomething(#item.Id);' class='list-group-item list-group-item-action mb-1'>You have been invited to join team: <b>#item.Name</b></a>
}
</div>
<script>
$('#lmao').click(function () { MyFunction(); return false; });
function MyFunction() {
alert('hello');
console.log(data);
console.log(this);
}
</script>
_Layout Page with popover:
<div class="navbar-collapse">
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" data-toggle="dropdown">
Settings
</a>
...
<a tabindex="0" class="dropdown-item pop" data-container="body" data-html="true" title="Your invitations" data-toggle="popover" data-placement="left" data-content="#await Component.InvokeAsync("InvitationList")" style="cursor: pointer;">Invitations (number coming from another viewcomponent)</a>
...
</div>
</li>
...
Popover JS in Layout:
<script>
$('.pop').popover({
trigger: 'manual',
html: true
})
.on('mouseenter', function () {
var _this = this;
$(this).popover('show');
$('.popover').on('mouseleave', function () {
$(_this).popover('hide');
});
}).on('mouseleave', function () {
var _this = this;
setTimeout(function () {
if (!$('.popover:hover').length) {
$(_this).popover('hide');
}
}, 300);
});
</script>
My popover works correctly, I see the items loaded from viewcomponent, I can press on each of them and go to preset href.
What doesn't work is javascript coming from viewcomponent or atleast I am failing to test it. My end goal is to make a post call if any of the items in the popover are clicked.

I tested your codes and found if you directly call viewcomponent in data-content, the jacascripts in ViewComponent will be recongnized as html, so it will never be called. Instead, you can define an area for viewcomponent separately
<a id="invitations" tabindex="0" class="dropdown-item pop" data-container="body" data-html="true" title="Your invitations" data-toggle="popover" data-placement="left" style="cursor: pointer;" data-content="">invitations</a>
<div id="vc" style="display:none">
#await Component.InvokeAsync("InvitationList")
</div>
Use js to append it to data-content
$("#invitations").attr("data-content", $("#vc").html())
Since it is a new element from other page, the handler won't be bound on that new element, your click function should be like this:
<script>
$('body').on('click', '#lmao', function () { MyFunction(); return false; });
function MyFunction() {
alert('hello');
console.log(data);
console.log(this);
}
</script>
Test result:

Run a jQuery function when all knockout.js has rendered [duplicate]

I have implemented a knockout foreach binding, with multiple templates in the same page, one of the example is given here, what I am interested is in finding out when a block finishes rendering, I have tried afterRender and afterAdd, but I guess it runs for each element, and not after the whole loop is finished.
<ul data-bind="foreach: {data: Contacts, afterAdd: myPostProcessingLogic}">
<li>
<div class="list_container gray_bg mrgT3px">
<div class="list_contact_icon"></div>
<div class="contact_name"><span data-bind="text: first_name"></span> <span data-bind="text: last_name"></span></div>
<div class="contact_number"><span data-bind="text: value"></span></div>
<div class="callsms_container">
<a href="#notification-box" class="notifcation-window">
<div class="hover_btn tooltip_call">
<div class="hover_call_icon"></div>
<span>Call</span></div>
</a>
<a class="sendsms" href="#sendsms" rel="#sendsms">
<div class="hover_btn tooltip_sms">
<div class="hover_sms_icon"></div>
<span>SMS</span></div>
</a>
<a href="#">
<div class="hover_more_btn"></div>
</a>
</div>
<!-- close callsms container -->
<div id="notification-box" class="notification-popup">
<img class="btn_close" src="images/box_cross.png" /> <img class="centeralign" src="images/notification_call.png" /> <span>Calling... +44 7401 287366</span> </div>
<!-- close notification box -->
<!-- close list gray bg -->
<div class="tooltip_description" style="display:none" id="disp"> asdsadaasdsad </div>
</div>
</li>
</ul>
I am interested in finding out just the success callback, when a loop finishes rendering.
here is my afterAdd function, which basically attaches some jQuery events, and nothing much.
myPostProcessingLogic = function(elements) {
$(function(){
$(".list_container_callog").hover(function(){
$(".callsms_container", this).stop().animate({left:"0px"},{queue:false,duration:800});
}, function() {
$(".callsms_container", this).stop().animate({left:"-98%"},{queue:false,duration:800});
});
});
}
thanks in advance, and tell me there is a success callback :)

You have the afterRender callback in knockout.js:
foreach: { data: myItems, afterRender: renderedHandler }
Here's documentation.
Inside your handler check whether the length of the rendered collection is equal to the length of the items collection. If not don't execute the full rendered logic that you intend to use.
renderedHandler: function (elements, data) {
if ($('#containerId').children().length === this.myItems().length) {
// Only now execute handler
}
}

Try wrapping the ul with
<div data-bind='template: {afterRender: myPostProcessingLogic }'>
It will only work the first time everything within the template is rendered. But you will only get the one call to myPostProcessingLogic. Here's a fiddle
<div data-bind='template: {afterRender: myPostProcessingLogic }'>
<ul data-bind="foreach: Contacts">
<li>
<div class="list_container gray_bg mrgT3px">
<div class="list_contact_icon"></div>
<div class="contact_name"><span data-bind="text: first_name"></span> <span data-bind="text: last_name"></span></div>
<div class="contact_number"><span data-bind="text: value"></span></div>
<div class="callsms_container">
<a href="#notification-box" class="notifcation-window">
<div class="hover_btn tooltip_call">
<div class="hover_call_icon"></div>
<span>Call</span></div>
</a>
<a class="sendsms" href="#sendsms" rel="#sendsms">
<div class="hover_btn tooltip_sms">
<div class="hover_sms_icon"></div>
<span>SMS</span></div>
</a>
<a href="#">
<div class="hover_more_btn"></div>
</a>
</div>
<!-- close callsms container -->
<div id="notification-box" class="notification-popup">
<img class="btn_close" src="images/box_cross.png" /> <img class="centeralign" src="images/notification_call.png" /> <span>Calling... +44 7401 287366</span> </div>
<!-- close notification box -->
<!-- close list gray bg -->
<div class="tooltip_description" style="display:none" id="disp"> asdsadaasdsad </div>
</div>
</li>
</ul>
</div>

Chuck Schneider's answer above is the best.
I had to use containerless control as the foreach is on a tbody element:
<!-- ko template: {afterRender: SetupCheckboxes } -->
<tbody data-bind="foreach: selectedItems" id="gridBody">
<tr>
<td>
<input type="checkbox" />
</td>
</tr>
</tbody>
<!-- /ko -->

Just wrap the foreach into another foreach loop using Knockout's container less method like this:
<!-- ko foreach:{data: Contacts, afterRender: myPostProcessingLogic }-->
<ul data-bind="foreach: $data}">
<li>
<div class="list_container gray_bg mrgT3px">
<div class="list_contact_icon"></div>
<div class="contact_name"><span data-bind="text: first_name"></span> <span data-bind="text: last_name"></span></div>
<div class="contact_number"><span data-bind="text: value"></span></div>
<div class="callsms_container">
<a href="#notification-box" class="notifcation-window">
<div class="hover_btn tooltip_call">
<div class="hover_call_icon"></div>
<span>Call</span></div>
</a>
<a class="sendsms" href="#sendsms" rel="#sendsms">
<div class="hover_btn tooltip_sms">
<div class="hover_sms_icon"></div>
<span>SMS</span></div>
</a>
<a href="#">
<div class="hover_more_btn"></div>
</a>
</div>
<!-- close callsms container -->
<div id="notification-box" class="notification-popup">
<img class="btn_close" src="images/box_cross.png" /> <img class="centeralign" src="images/notification_call.png" /> <span>Calling... +44 7401 287366</span> </div>
<!-- close notification box -->
<!-- close list gray bg -->
<div class="tooltip_description" style="display:none" id="disp"> asdsadaasdsad </div>
</div>
</li>
</ul>
<!-- /ko -->

The solution above works great. Additionally, if you need to use the foreach "as" option you can do it as so:
data-bind="foreach: { data: myItems, afterRender: renderedHandlet, as: 'myItem'}">

In version 3.5 Knockout provides events to notify when the contents of a node have been bound
HTML
<div data-bind="childrenComplete: bindingComplete">...</div>
JavaScript
function bindingComplete(){
...
}
If you an create event binding expression at a point in the DOM that encapsulates all your child data binding expression, then it's tantamount to a page binding complete event
reference
https://knockoutjs.com/documentation/binding-lifecycle-events.html

I have just recently made a pull request with knockout for them to add two events to define in the binding, unwrap, then call in the correct spots before rendering the items and after all items have rendered. I haven't heard anything back from them but this does exactly what you want to do but you don't have to write hacky code to get it to work. I'm surprised that nobody has made this request before. I used these callbacks that I added to the source to destroy and reinitialize a knockout bound jquery datatable. This was the simplest solution. I have seen many attempts online that try and do it differently but this is the simplest solution.
Pull request: --> pr 1856
ko.bindingHandlers.DataTablesForEach = {
init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
var nodes = Array.prototype.slice.call(element.childNodes, 0);
ko.utils.arrayForEach(nodes, function(node) {
if (node && node.nodeType !== 1) {
node.parentNode.removeChild(node);
}
});
return ko.bindingHandlers.foreach.init(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext);
},
update: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
var value = ko.unwrap(valueAccessor()),
key = "DataTablesForEach_Initialized";
var newValue = function() {
return {
data: value.data || value,
beforeRenderAll: function(el, index, data) {
if (ko.utils.domData.get(element, key)) {
$(element).closest('table').DataTable().destroy();
}
},
afterRenderAll: function(el, index, data) {
$(element).closest('table').DataTable(value.options);
}
};
};
ko.bindingHandlers.foreach.update(element, newValue, allBindingsAccessor, viewModel, bindingContext);
//if we have not previously marked this as initialized and there is currently items in the array, then cache on the element that it has been initialized
if (!ko.utils.domData.get(element, key) && (value.data || value.length)) {
ko.utils.domData.set(element, key, true);
}
return {
controlsDescendantBindings: true
};
}
};
Knockout Datatables JSFiddle

Try afterRenderAll callback in knockout.js:
foreach: { data: myItems, afterRenderAll: myPostProcessingLogic }

Knockout foreach dynamically set ID

I just started using knockout and having some problems using foreach.
I need to dynamically populate a list with "collapsing" div.
I cant figuer out how to set the
"data-target=""" with the according div id.Is there a kind of $index as in Angular.How do i declare it inside of the data-target?
Thank for the help.
<ul class="nav navbar-nav side-nav">
<li data-bind="foreach: { data: categories, as: 'category' }">
<div id="??" class="collapse">
<h1>Some text</h1>
</div>
</li>
</ul>

Do it within the data-bind:
<a href="javascript:;" data-toggle="collapse" data-bind="attr: { 'data-target': ... }">
<div class="collapse" data-bind="attr: { id: ... }">
Knockout does have a $index context property, too:
<div data-bind="attr: { id: 'foo' + $index() }">

What's data-target being used for? I don't think you not need that in the first place.
If you want to toggle a section, I recommend using a more natural way to solve this. In the context of knockout this means: write a binding handler that encapsulates the behavior you want.
Expressed in simplest terms: You want to click on something and it should toggle something else. For example the visibility of the following <h1>
The minimal thing to do would be: Toggle a CSS class and use that to influence visibility.
Here is a binding handler that switches a CSS class on and off. Together with the simplest CSS you get collapse/expand behavior.
ko.bindingHandlers.toggleClass = {
init: function (element, valueAccessor) {
ko.utils.registerEventHandler(element, 'click', function () {
var cssClass = valueAccessor(),
shouldHaveClass = element.className.indexOf(cssClass) < 0;
ko.utils.toggleDomNodeCssClass(element, cssClass, shouldHaveClass);
});
}
}
ko.applyBindings({
categories: [
{title: 'Category A'},
{title: 'Category B'},
{title: 'Category C'},
{title: 'Category D'}
]
});
.collapsed+.collapse {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<ul data-bind="foreach: categories">
<li>
<div class="collapse">
<h1>Some text</h1>
</div>
</li>
</ul>
Of course you can use all kinds of more advanced techniques, but the principle would stay the same. Define a behavior, attach that behavior to an element via a binding handler.

How to override an external html template angular.js

I'm using this https://github.com/amitava82/angular-multiselect multiselect dropdown for my project.
In my html:
<am-multiselect class="sv-manage-multiselect-dropdown"
ng-model="nameList.name"
options="name as name.key for name in nameList"
multiple="true"
</am-multiselect>
This dropdown has a "checkall" and "uncheckall" button in the dropdown, which I WANT to remove, while keeping the functionality of the multi-select.
This is the html in the directive the guy uses:
src/multiselect.tmpl.html
<div class="btn-group">
<button type="button" class="btn btn-default dropdown-toggle" ng-click="toggleSelect()" ng-disabled="disabled" ng-class="{'error': !valid()}">
{{header}}
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li>
<input class="form-control input-sm" type="text" ng-model="searchText.label" ng-keydown="keydown($event)" autofocus="autofocus" placeholder="Filter" />
</li>
<li ng-show="multiple" role="presentation" class="">
<button class="btn btn-link btn-xs" ng-click="checkAll()" type="button"><i class="glyphicon glyphicon-ok"></i> Check all</button>
<button class="btn btn-link btn-xs" ng-click="uncheckAll()" type="button"><i class="glyphicon glyphicon-remove"></i> Uncheck all</button>
</li>
<li ng-repeat="i in items | filter:searchText" ng-class="{'selected': $index === selectedIndex}">
<a ng-click="select(i); focus()">
<i class='glyphicon' ng-class="{'glyphicon-ok': i.checked, 'empty': !i.checked}"></i> {{i.label}}</a>
</li>
</ul>
</div>
I wan't to just remove/override the checkall and uncheckall buttons WITHOUT editing this library's directive. I can override the CSS in my personal file.css, but how do I override the HTML template he uses. Thanks

I see 3 ways you could do it:
Add your own template to replace this one like this (reference):
<script type="text/ng-template" id="multiselect.tmpl.html">
html template without buttons here
</script>
The potential issue with this is that you would be overriding this template everywhere it's used. But maybe you are using this in a bunch of places and that makes sense.
Add a decorator to the directive that removes the part of the template you don't want during the compile phase and allows the rest of the directive to perform as usual:
decorator('amMultiselectPopupDirective' ['$delegate', function($delegate) {
var directive = $delegate[0];
var compile = directive.compile;
directive.compile = function(tElement, tAttrs) {
var link = compile.apply(this, arguments);
if (tAttrs.disableCheckAll) {
tElement.find('li[ng-show="multiple"]').remove();
// this code could be different, but the gist is that it would remove or hide the stuff you don't want
}
return function() {
link.apply(this, arguments);
};
};
return $delegate;
}]);
The potential issue here is that you would be changing the template for this directive everywhere the directive is used. That's why in my example I made the template change conditional based on some attribute you could define, like disableCheckAll.
Use template-url attribute that is already defined for this directive and create your own template that doesn't have these buttons:
<script type="text/ng-template" id="yourowntemplate.html">
html template without buttons here
</script>
<am-multiselect ...
template-url="yourowntemplate.html">
</am-multiselect>
I would say 3 is probably the best way to do it. But 1 could work better if you wanted to override the default, and then you wouldn't have to pass in the template-url everytime you use the am-multiselect directive.
Edit: Here is a working example for 3: http://plnkr.co/edit/m0lZSHUJ8MHslqCNPnCc?p=info

Overlap his directive with your own div with class: "no-btns"
Add this css:
.no-btns .dropdown-menu li:nth-child(2) {display:none;}
Example:
<style>
.no-btns .dropdown-menu li:nth-child(2) {
display:none;
}
</style>
<div class="no-btns">
<am-multiselect class="sv-manage-multiselect-dropdown"
ng-model="nameList.name"
options="name as name.key for name in nameList"
multiple="true"
</am-multiselect>
</div>

Dynamic binding of li items click event

I have durandal and knockout web application.
I have a html as follows:
<ul id="header">
</ul>
In .js function I am adding li dynamically as:
$("#header).append('<li id="btn"> <span class="name">Test</span></li>')
ko.applyBindingsToNode(ul);
I am aware of the fact that I am binding the li after applyBindings has been called. To add it dynamically I am using
ko.applyBindingsToNode(ul); , but still no luck.
Can anyone please tell me whats the syntax/alternative solution for this?

// begins a JavaScript comment. This means that everything after <a href="javascript: is commented out, and the resulting code will look something like this:
$("#header).append('<li id="btn"><a href="javascript:
ko.applyBindingsToNode(ul);
Furthermore, the ko.applyBindingsToNode call will be part of the ' string opened just after the opening brackets on the append call.
To resolve this, you need to escape those comments by placing backslashes before them:
href="javascript:\/\/"

Refer to the demo here.
Please find the code below:
HTML:
<ul id="header">
</ul>
JS:
$(function() {
$("#header").append('<li id="btn">' + ' <span class="name">Test</span></li>');
//ko.applyBindingsToNode(ul);
});

using foreach:
var DemoPage = (function() {
function DemoPage() {
var _this = this;
_this.buttons = ko.observableArray([]);
_this.debug = ko.observable('');
_this.testmethod = function(data, event) {
_this.debug('Clicked LI: ' + data.buttonId);
}
_this.addHeadingRow = function() {
_this.buttons.push({
buttonId: Math.floor(Math.random() * 100)
});
}
}
return DemoPage;
})();
var demoApp = new DemoPage();
ko.applyBindings(demoApp);
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<ul id="header" data-bind="foreach: buttons">
<li id="btn">
<a data-bind="click: $root.testmethod">
<span class="name">Test</span>
</a>
</li>
</ul>
<button data-bind="click: addHeadingRow">add heading row</button>
<p data-bind="text: debug"></p>

I would like to answer my own question.
The solution is very simple .
In the .js file define an observable array
self.arraysample = ko.observableArray([]);
In a method populate the array with data
self.arraysample.push(data)
In the html page , we can do this:
<ul id="head" data-bind:"foeach:arraysample">
<li>
<a id="btn">
<span data-bind="text:$data.arrayelement"></span>
</a>
</li>
</ul>
Thats it whenevr the data in the "self.arraysample" changes, automatic updating will take place because of knockout js properties.
I hope it helps someone because ,I have seen so many examples in the web advising to use ko.applyBindings() once again which doesnt work at all.