I am pretty much new to Angular JS. I have some products to display in the home page which I am displaying using ng-repeat. Each product have an 'Add to cart' button which is also displayed using ng-repeat. My problem is, I want to change the text of a particular button I am clicking. I have used 'toggle' and all the buttons text is changing. Please some one help me with this issue.
My HTML Code:
<div class="col-md-3 col-sm-6" ng-repeat="item in products">
<div class="thumbnail">
<image src="{{item.imageUrl}}"></image>
</div>
<div>
<button class="btn btn-primary" ng-click="toggle(item)">{{buttonText}}</button>
</div>
</div>
My angular js code:
var toggle = false;
$scope.toggle = function(item){
$scope.buttonText = toggle ? 'Add To Cart' : 'Remove From Cart';
toggle=!toggle;
}
You need to add a property to the item you are passing in. Then use that property. Changing scope would change all instances.
var toggle = false;
$scope.toggle = function(item){
item.buttonText = toggle ? 'Add To Cart' : 'Remove From Cart';
toggle=!toggle;
}
<div class="col-md-3 col-sm-6" ng-repeat="item in products">
<div class="thumbnail">
<image src="{{item.imageUrl}}"></image>
</div>
<div>
<button class="btn btn-primary" ng-click="toggle(item)">{{item.buttonText}}</button>
</div>
</div>
kind of like above
Related
I am working on an angularJS application which has a page where I display around 30 items using ng-repeat. In front of each item, there is a toggle button (enabled/disabled). With the current code that I have, I can toggle these items. But the problem is if I scroll down and toggle lets say item 25, then automatically it scrolls to the top of the page. If I now scroll down, I can see that the toggle actually took place.
So the requirement now is to make sure that the scroll position is retained after the toggle button is clicked.
Please see below the code that I have.
HTML
<div id="eventTypes" class="panel-body">
<div ng-if="!spinner" ng-repeat="item in items" class="panel-body">
<div class="row">
<div class="col-md-9">{{item.itemName)}}</div>
<div class="col-md-3">
<input id="toggleEnabled"
type="button"
ng-class="{'btn-primary': item.enabled}"
value="{{item.enabled ? 'enabled' : 'disabled'}}"
ng-click="toggleEnabled(item)">
</div>
</div>
</div>
<div ng-if="spinner" class="spinner">
<div class="spinner-container container1">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="spinner-container container2">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
<div class="spinner-container container3">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
<div class="circle4"></div>
</div>
</div>
</div>
JS
(function () {
'use strict';
angular.module('myApp').controller('itemsController', function ($scope, itemsService) {
var serviceError = function (errorMsg) {
console.log(errorMsg);
$scope.turnOffSpinner();
};
$scope.items = [];
$scope.item = {};
$scope.spinner = true;
$scope.toggleEnabled = function (item) {
$scope.turnOnSpinner();
itemsService.toggleEnabled(item)
.then(function () {
$scope.loaditems();
});
};
$scope.loaditems = function () {
itemsService.getitems().then(function (response) {
$scope.items = response.data;
}, serviceError);
$scope.turnOffSpinner();
};
$scope.turnOnSpinner = function () {
$scope.spinner = true;
};
$scope.turnOffSpinner = function () {
$scope.spinner = false;
};
$scope.loaditems();
});
}());
How this works right now is, once I click the toggle button, a spinner is enabled. Meanwhile the controller will call the itemService.toggleEnabled() method which does an ajax call to the server to just change the status of the item(enabled to disabled or vice-versa) in the backend. On successful change of the status and when the ajax call returns, the $scope.loadItems() method is called in the controller. This method will then do another ajax call to fetch the items (now with the updated status of the item that was toggled). The spinner is disabled and the data is then displayed on the UI.
When all of this is done, the page is scrolled to the top. This is annoying when I want to toggle an item which is way down in the list.
I want the page to be present at the same position when I clicked the toggle button of the corresponding item and not scrolling up to the top.
I am new to AngularJS and any help in this regard would be really helpful.
It looks like your spinner scheme is what's causing you problems:
...
<div ng-if="!spinner" ng-repeat="item in items" class="panel-body">
...
<div ng-if="spinner" class="spinner">
...
Whenever you click your button, you are removing every single element in your ng-repeat from the DOM when you $scope.turnOnSpinner(). That's why it appears to jump to the top. It's not really jumping, there just aren't enough DOM elements to fill up the page, making the page so short that the scrollbar disappears (even if it's only for a second). Then when the spinner is done, your ng-repeat fills up the page with DOM elements again, resulting in your scroll position being lost.
So basically what you are trying to fix is a symptom of a less than ideal loading spinner implementation.
ng-if is a "brutal" way of hiding things in Angular. It's mostly meant to hide things for a longer period of time than "softer" directives like ng-show/ng-hide. One solution to your problem is to use ng-disabled on each one of your buttons to prevent the user from interacting with it while the spinner is active, rather than doing a hard removal of each element:
Before:
<div ng-if="!spinner" ng-repeat="item in items" class="panel-body">
<div class="row">
<div class="col-md-9">{{item.itemName)}}</div>
<div class="col-md-3">
<input id="toggleEnabled"
type="button"
ng-class="{'btn-primary': item.enabled}"
value="{{item.enabled ? 'enabled' : 'disabled'}}"
ng-click="toggleEnabled(item)">
</div>
</div>
</div>
After:
<div ng-repeat="item in items" class="panel-body">
<div class="row">
<div class="col-md-9">{{item.itemName)}}</div>
<div class="col-md-3">
<input id="toggleEnabled"
ng-disabled="spinner"
type="button"
ng-class="{'btn-primary': item.enabled}"
value="{{item.enabled ? 'enabled' : 'disabled'}}"
ng-click="toggleEnabled(item)">
</div>
</div>
</div>
Another solution, which I really like and use myself is this Angular module: https://github.com/darthwade/angular-loading
You can attach it to any element in the page and it will put a loading spinner over it and prevent you from interacting with it until your ajax or whatever is done.
If you don't like either of those, try putting your ng-repeat into a container that you can use to prevent interaction with your elements when the spinner is up:
<div class="container" ng-class="{'you-cant-touch-this': spinner}">
<div ng-repeat="item in items" class="panel-body">
<div class="row">
<div class="col-md-9">{{item.itemName)}}</div>
<div class="col-md-3">
<input id="toggleEnabled"
type="button"
ng-class="{'btn-primary': item.enabled}"
value="{{item.enabled ? 'enabled' : 'disabled'}}"
ng-click="toggleEnabled(item)">
</div>
</div>
</div>
</div>
Now you can style it in some way to prevent interaction without having to remove all those items from the DOM:
.you-cant-touch-this {
pointer-events: none;
}
I'm trying to have a button that brings a user to the product details but id also like the button to increment a counter through an ng-click function
<div class="row center-block save-button" >
<a data-ng-href="/savings/{{saving._id}}" >
<md-button aria-label="button" ng-click="upVoteHome(saving)" type="button" class="save-button-md">Save</md-button>
</a>
</div>
The ng-click here has no effect and never cllas the function.
How do I combine the two?
Thanks
do this:
<div class="row center-block save-button" >
<md-button aria-label="button" ng-click="upVoteHome(saving, {{saving._id}})" type="button" class="save-button-md">Save</md-button>
</div>
and then in the upVoteHome function incremment the counter and then redirect to the url that is passed.
my suggestion is remove the ng-href, and handle only the click
<div class="row center-block save-button" >
<md-button aria-label="button" ng-click="upVoteHome(saving)" type="button" class="save-button-md">Save</md-button>
</div>
in your controller code you can redirect the user to another view
$scope. upVoteHome = function ( saving ) {
//YOUR EXISTING CODE HERE
$location.path( '/savings/' + saving._id );
};
I'm currently building a wizard in asp.net MVC 5 application using knockout. On one of the steps, I need to add items to an html list. that is, text is enter into a textbox and you click the added button, the text is added to the list.
My template:
<script type="text/html" id="addProduct">
<li class="dd-item bordered-inverse animated fadeInDown">
<div class="dd-handle dd-nodrag">
<div class="checkbox">
<label>
<a data-bind="attr: { 'href': '#' }" class='btn btn-xs icon-only success'><i class="fa fa-trash-o"></i></a>
<label data-bind="text: Name, uniqueName: true"></label>
</label>
</div>
</div>
</li>
</script>
<div class="row">
<div class="col-md-6">
<div id="newProduct" class="dd">
<ol class="dd-list" data-bind="template: { name: 'addProduct', foreach: Model.Step1.ProductServices }"></ol>
</div>
</div>
</div>
input textbox:
#Html.TextBoxFor(model => model.Step1.ProductService, new { data_bind = "value: Model.Step1.ProductService")
<button type="button" id="addservice" data-bind="event:{ click: AddProduct }">Add Service/Product</button>
knockout add event:
self.AddProduct = function () {
self.Model.CurrentStep().ProductServices.push({ name: self.Model.CurrentStep().ProductService });
}
self.Model.CurrentStep().ProductServices is a List Product as just one property name.
The code above add an item to the html list and updates the UI, but self.Model.CurrentStep().ProductServices.length is always zero, meaning nothing was added to the Model itself.
Please how can I force it to update the self.Model.CurrentStep().ProductServices?
length is not a property of an observableArray. Check ProductServices().length instead.
I have a list of Items with different button with them. Plunker
Quick View:
I want something like if I click on any of the buttons, related text will be copy to the div above. Also if I click on the button again it will removed from the Div.Same for each of the buttons. [I added manually one to show how it may display ]
I am not sure how to do that in Angular. Any help will be my life saver.
<div ng-repeat="item in csTagGrp">
<ul>
<li ng-repeat="value in item.csTags">
<div class="pull-left">
<button type="button" ng-class='{active: value.active && !value.old}' class="btn btn-default btn-xs">{{value.keys}}</button>
<span>=</span>
</div>
<div class="pull-left cs-tag-item-list">
<span>{{value.tags}}</span>
</div>
</li>
</ul>
</div>
The simplest thing would be to use $scope.tags object to store selected tags and add/remove them with the scope method similar to this:
$scope.tags = {};
$scope.toggleTag = function(tag) {
if (!$scope.tags[tag]) {
$scope.tags[tag] = true;
}
else {
delete $scope.tags[tag];
}
};
Demo: http://plnkr.co/edit/FrifyCrl0yP0T8l8XO4K?p=info
You can use ng-click to put in your scope the selected value, and then display this value instead of "Win".
http://plnkr.co/edit/IzwZFtRBfSiEcHGicc9l?p=preview
<div class="myboard">
<span>{{selected.tags}}</span>
</div>
...
<button type="button" ng-click="select(value)">{{value.keys}}</button>
I have a ng-repeat which display a list of divs and when I click on one it shows an aditionnal div for the clicked item.
This is working
<div ng-repeat="item in items">
<div ng-click="showfull = !showfull">
<div>
<h1>{{item.title}}</h1>
<p>{{item.content}}</p>
</div>
</div>
<div ng-show="showfull">
<p>{{item.info}}</p>
</div>
<hr/>
</div>
My items are loaded from a json containing a list of item and each item have a default attribut showfull set to false in this json. This is working, but now I want to hide all others item in the list when an item is clicked. I've tryied something like this :
This is not working
<div ng-repeat="item in items">
<div ng-click="expand(item)">
<div>
<h1>{{item.title}}</h1>
<p>{{item.content}}</p>
</div>
</div>
<div ng-show="showfull">
<p>{{item.info}}</p>
</div>
<hr/>
</div>
and in the controller I've added a function :
$scope.expand = function(e) {
e.showfull = !e.showfull;
//TODO: put here a foreach logic to hide all other items
}
But even without the foreach logic this is not working, the item don't show the additionnal div when clicked. I have two question :
I suppose this is due to item being "passed by copy" in the expand function or some kind of scope isolation issue but can you explain me why in detail ?
SOLVED
How can I hide all the additional div of other items when I click an item and show the additionnal content for this item ? Do I need to do a directive ?
NOT SOLVED
Thanks
I think you're on the right track. You need to set the showfull on the item and then use ng-show or ng-if to hide it, or as Gavin mentioned, use a class.
On ng-click you can call your expand function, where you pass the item, toggle it and set all others to hidden.
Template:
<div ng-repeat="item in items>
<div ng-click="expand(item)">
<div>
<h1>{{item.title}}</h1>
<p>{{item.content}}</p>
</div>
</div>
<div ng-show="item.showfull">
<p>{{item.info}}</p>
</div>
<hr/>
</div>
Controller:
$scope.expand = function (item) {
angular.forEach($scope.items, function (currentItem) {
currentItem.showfull = currentItem === item && !currentItem.showfull;
});
};
Your expand method is modifying the item, so your ng-show needs to reference the item:
<div ng-show="item.showfull">
<p>{{item.info}}</p>
</div>
To hide all of your items you need to do something like
$scope.expand = function(item) {
angular.forEach(items, function(i) {
if (i === item) {
i.showfull = !i.showfull;
} else {
i.showfull = false;
}
});
};
Shouldn't the second div you want to show be referencing the item?
<div ng-repeat="item in items>
<div ng-click="expand(item)">
<div>
<h1>{{item.title}}</h1>
<p>{{item.content}}</p>
</div>
</div>
<!-- Added item to ng-show -->
<div ng-show="item.showfull">
<p>{{item.info}}</p>
</div>
<hr/>
</div>