i have an element which have ng-click event and on clicking it adds a div that works fine. what i want is to remove ng-click after adding the div .
one way is to use ng-if
<div ng-click="addDiv()" ng-if="!divAdded" >
<span>i add a div</span>
</div>
<div class="disabled" ng-if="divAdded" >
<span>i add a div</span>
</div>
for this i have to add multiple div for single element that works on and off.
is there any way to unbind click event like we do in jquery dynamically?
any help will be appreciated
You can also do this:
<div ng-click="divAdded || addDiv()" >
<span>i add a div</span>
</div>
This will prevent ng-click from calling addDiv() if divAdded is true
Put that logic into the controller, not into the view
Controller:
(function(){
function divAddController() {
var self = this;
self.divAdded = false;
self.addDiv = function() {
if(!divAdded) {
//Add div here
self.divAdded = true;
}
}
}
angular.module("example")
.controller("divAddController", divAddController);
})();
View:
<div ng-controller="divAddController as divAdder">
<div ng-click="divAdder.addDiv()" ng-class="{disabled: divAdder.divAdded}">
<span>i add a div</span>
</div>
</div>
You can do it in a more easy way like this:
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl', function($scope) {
$scope.showDiv = false;
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="MyCtrl">
<button ng-click="showDiv = true;">I show the div</button>
<div ng-if="showDiv">I am visible!</div>
</div>
Related
I've got a problem using $anchorScroll. I've got a div with an ng-ig condition that isn't visible at the beginning. I need use the $anchorScroll function to go in that div when a button is clicked. This button also make the div visible. Right now doesn't work because i think it fires the $anchorScroll before the div is created. This is the code:
<body ng-app="testApp" data-ng-controller="searchController as searchCtrl" >
<div id="scrollArea">
<form>
//HTML input elements
<div class="buttons">
<md-button class="md-primary md-raised" ng-click="searchCtrl.gotoTable('resultTable')">Start</md-button>
{{searchCtrl.test}}
</div>
</form>
</div>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<!-- Smart Table for displaying result -->
<div id="resultTable" class="rtable">
<div ng-if="searchCtrl.test == true" >
//table content
</div>
</div>
</body>
and the angular part
var app = angular.module('testApp', []);
app.controller("searchController", function($scope, $location, $anchorScroll, $timeout){
var self = this;
self.test = false;
self.gotoTable = function(resultTable)
{
self.test = true;
self.anchor(resultTable);
};
self.anchor = function(resultTable) {
$location.hash('resultTable');
$anchorScroll();
} ;
});
Plunker: http://plnkr.co/edit/HrdN2ZACDui61l1kPHEj?p=preview
Thanks
After playing around with your plunker, I've found that updating angularJs for the latest version fixed the problem.
I don't know if you can update your angular version?
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.min.js"></script>
I am using ng-switch when method to append divs. This is the code created
<input type="checkbox" ng-model="data" />
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch"></div>
</span>
<span ng-switch-default>
<div class="secondSwitch"></div>
</span>
</ng-switch>
Its working fine now. But when i want to append something in the div.
Say, i want to append text using javascript inside secondSwitch div, but i can't append it because initially the secondSwitch div is not appended.
setTimeout(function(){
$(".secondSwitch").html("<p>Second Switch is displayed</p>");
$(".firstSwitch").html("<p>First Switch is displayed</p>");
},100);
Here the text is appended properly inside firstSwitch div because initially it is created but the text is not appended inside secondSwitch div because it's not created.
So, i can't append inside that div. So, how to overcome this problem guys. Here is the Plnkr
As you already noticed ng-switch modifies DOM and firstSwitch is not created initially. You should use binding to get this working. Here is working demo
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch"><p>{{firstText}}<p></div>
</span>
<span ng-switch-default>
<div class="secondSwitch"><p>{{secondText}}<p></div>
</span>
app.controller('MainCtrl', function($scope, $timeout) {
$scope.data = false;
$timeout(function(){
$scope.firstText = "First Switch is displayed";
$scope.secondText = "Second Switch is displayed";
},100);
Update
And here's demo for binding to html
Try this
<div class="secondSwitch"><div id="replacediv"></div></div>
var divElement = angular.element(document.querySelector('#replacediv'));
var appendHtml = $compile('<div>test</div>')($scope);
divElement.append(appendHtml);
you can use ng-show directive for this.
// Code goes here
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope,$timeout) {
$scope.data = false;
$scope.show = false;
$scope.change = function(){
$timeout(function(){
$scope.show = !$scope.show;
},300);
}
});
<script src="http://code.jquery.com/jquery-1.12.2.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="plunker">
<div ng-controller="MainCtrl">
<input type="checkbox" ng-model="data" ng-change="change()" />
Check
<ng-switch on="data">
<span ng-switch-when="true">
<div class="firstSwitch">
<p ng-show="show">First Switch is displayed</p>
</div>
</span>
<span ng-switch-default>
<div class="secondSwitch">
<p ng-show="!show">Second Switch is displayed</p>
</div>
</span>
</ng-switch>
</div>
I had a hard issue figuring out on how to hide and show icon/text with angular code. I am completely new to angular and tried hard on the below fiddle code. How do I hide + or minus icon with .closest in such dom scenarios.
<div ng-controller="MyCtrl">
{{name}}
<div data-toggle="collapse" aria-expanded="true" data-target="#list-item-line-0" id="expandCollapseChild" ng-click="addExpandCollapseChildIcon()">
<div>
<div>
<label>
<div>
<span class="icon-expand">-</span>
<span class="icon-collapse">+</span>
</div>
<div>
Click me to hide minus icon
</div>
</label>
</div>
</div>
</div>
</div>
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.name = 'Superhero';
$scope.addExpandCollapseChildIcon = function() {
alert('');
if (angular.element('#expandCollapseChild').hasClass('collapsed')) {
angular.element(this).closest('.icon-collapse').css('display', 'none');
} else {
if (angular.element('#expandCollapseChild').hasClass('collapsed')) {
angular.element(this).closest('.icon-collapse').css('display', 'block');
}
}
}
In Angular, this is the wrong approach. You shouldn't actually show or hide elements inside the controller. That's applying a jQuery style (working directly on the DOM) to Angular.
In Angular, you'd use something like ng-if, ng-show or ng-class, all of which can link back to a property on the scope object that is accessible via the controller.
Here are some examples:
<div ng-if="myProp === 'ShowMe'">
<div ng-show="myProp === 'ShowMe'">
<div ng-class="{myCssClass: myProp === 'ShowMe'">
Inside your controller, you'd have something like this:
function MyCtrl($scope) {
$scope.myProp = 'ShowMe';
$scope.addExpandCollapseChildIcon = function(newPropValue) {
$scope.myProp = newPropValue;
}
}
Here's some links to documentation on ng-if, ng-show and ng-class:
https://docs.angularjs.org/api/ng/directive/ngIf
https://docs.angularjs.org/api/ng/directive/ngShow
https://docs.angularjs.org/api/ng/directive/ngClass
AngularJS has a bunch of angulary ways of doing things, your question for example might look like this:
var app = angular.module("app", []);
app.controller("ctrl", function($scope) {
$scope.collapsed = true;
})
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="ctrl">
<span ng-bind="collapsed ? '+' : '-'"></span>
</div>
</div>
It watches a model and changes it's appearance based on that model using the ternary operator within ng-bind.
The way you defined your app and controller was incorrect. There's a bunch of different ways to do this as you can see from the answers.
I took this approach:
<div ng-app='myApp' ng-controller="MyCtrl">
{{name}}
<div>
<div>
<div>
<label>
<div>
<span ng-show='(collapsed != false)' class="icon-expand">-</span>
<span ng-show='(collapsed == false)' class="icon-collapse">+</span>
</div>
<div ng-click='collapsed = !collapsed'>
Click me to hide minus icon
</div>
</label>
</div>
</div>
</div>
</div>
<script>
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl', function ($scope) {
$scope.name = 'Superhero';
$scope.collapsed = false;
});
</script>
Create a scoped variable that indicated whether or not it is collapsed . Then change that variable and the ng-shows will react.
alert in click event is not working. if i use alert outside of the function it will work.but i need this alert on button click. how to do it.?
My coding is here
<div ng-app="indexapp" class="main">
<div ng-controller="timectrl" class="timediv">
<li><a ng-click='go()'>Like</a></li>
</div>
</div>
my script
var app = angular.module('indexapp', []);
app.controller('timectrl', function($scope) {
$scope.go = function() {
alert('hi');
}
});
Try: href=""
See:
https://docs.angularjs.org/api/ng/directive/a
Havent tested yet.
I am guessing that ng-click should work here IF you click on the text 'Like' (because you applied ng-click to <a> rather than <li>).
If thats the case, move ng-click to the <li> item:
<li ng-click='go()'><a>Like</a></li>
<div ng-app="indexapp" class="main">
<div ng-controller="timectrl" class="timediv">
<li><a ng-click='events.go()'>Like</a></li>
</div>
</div>
And your controller,
var app = angular.module('indexapp', []);
app.controller('timectrl', function($scope) {
$scope.events = {};
$scope.events.go = function() {
alert('hi');
}
});
Try this one.
Let's say i have a search box and i want to display it after user click on button . so far so good .
but i want to add another feature , when user click anywhere search box go away .
How can i do this with AngularJs ?
this is my code :
HTML
<button class="btn btn-info " ng-click="addStyle()" ><i class="fa fa-search"></i>
Search</button>
<input type="text" placeholder="Type" class="{{noneStyle}} {{visibleStyle}}">
Angular
app.controller("MainCtrl", function($scope,$http){
$scope.noneStyle = "noneVisible";
$scope.addStyle = function(){
$scope.noneStyle = "visibleStyle";
}
})
any idea ?
Thx in advance
I'd recommend use ng-if instead
app.controller("MainCtrl", function($scope,$http){
$scope.visible = true;
$scope.changeStatus = function(){
$scope.visible = !$scope.visible;
}
$scope.hideAll= function(){
$scope.visible=false;
}
})
HTML
<div class="well" ng-controller="MyController">
<button class="btn btn-primary" ng-disabled="checked" ng-click="changeStatus()" ng-blur="hideAll()">BUTTON</button>
<hr/>
{{visible}}
<input type="text" placeholder="Type" ng-if="visible">
</div>
look at this jsFiddle
try it out!
Use ng-blur/ng-focus to achieve this.
I demonstrate a simple code over here. http://jsfiddle.net/lookman/1Lp95or0/
var myApp = angular.module('myApp',[]);
myApp.controller('MyController', function($scope) {
$scope.visible = true;
$scope.changeStatus = function(){
$scope.visible = !$scope.visible;
}
$scope.hideAll= function(){
$scope.visible=false;
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="MyController">
<button ng-disabled="checked"
ng-click="changeStatus()">Click to show/hide the input box</button>
<hr/>
<p>Current visible status: {{visible}}</p>
<input type="text" placeholder="Type" ng-show="visible" ng-blur="hideAll()">
</div>
</div>
Note that in this example, you need to click on input box first before clicking elsewhere to hide it. I hope this is what are you looking for and this helps.
Use the ng-blur directive to update your model when the user clicks somewhere else:
<button class="btn btn-info " ng-click="addStyle()" ng-blur="removeStyle()">
You could do it using standard JavaScript, registering an event listener once the search box is displayed and unregistering it, as soon as the user has clicked anywhere:
$scope.addStyle = function()
{
$scope.noneStyle = "visibleStyle";
// register event listener
document.addEventListener("click", hideSearchBox);
}
function hideSearchBox()
{
// set style to hide search box
$scope.noneStyle = "noneVisible";
// unregister event listener
document.removeEventListener("click", hideSearchBox);
}
I'm not sure if there is a more Anuglar-way of doing it. To do so, you would need to register something on document level, as you want the search box to be hidden if you click anywhere. And "anywhere" might not be where the Angular root scope is registered..