I have an html file with 2 form elements with input elements inside both. I would be using the ng-if to select which form element I need. The input elements are bound to the same model. But I am unable to resolve it outside the form scope.
<form ng-if="some_name == '1'">
<input ng-model="model_name">
</form>
<form ng-if="some_name == '2'">
<input ng-model="model_name">
</form>
{{model_name}} //This is different from the value of either of the input elements
//it has the initial value which i would assign : $model_name = "xyz"; in my associated js file
The reason you are not able to see those changes outside your form is because you are using 'ngIf' directive to add/remove the DOM and also the 'ngIf' directive creates a new scope.
There are two quick ways to solve this:
1) Make use of 'ngShow'. Look at the below example:
angular.module('app', [])
.controller('HomeController', function($scope) {
$scope.model_name = 'Hi';
$scope.some_name = '1';
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div data-ng-app="app" data-ng-controller="HomeController">
<form ng-show="some_name == '1'">
<input ng-model="model_name">
</form>
<form ng-show="some_name == '2'">
<input ng-model="model_name">
</form>
{{model_name}}
</div>
2) Make the input model an object, instead of a primitive.
angular.module('app', [])
.controller('HomeController', function($scope) {
$scope.model_name = {
value: 'Hi'
};
$scope.some_name = '1';
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div data-ng-app="app" data-ng-controller="HomeController">
<form ng-if="some_name == '1'">
<input ng-model="model_name.value">
</form>
<form ng-if="some_name == '2'">
<input ng-model="model_name.value">
</form>
{{model_name.value}}
</div>
Related
I am dynamically creating divs, while clicking a button which contains some radio inputs. In the controller I have an array for the divs population which initially has a length of 1.
'use strict';
angular.module('load').controller(
'commodityController',
function($scope, $http, $state, $stateParams) {
$scope.parentload = $scope.$parent.load;
$scope.addMoreCommodities = function() {
$scope.parentload.loadCommodities.push({
'isHazmat' : false,
'dimension' : 'IN'
});
}
$scope.parentload.loadCommodities = []; // emtry array
$scope.addMoreCommodities(); // Here initialize the array
$scope.changeHazmat = function(booleans, val) {
console.log("booleans " + booleans);
console.log("isactive " + val);
$scope.parentload.loadCommodities[val].isHazmat = booleans;
};
});
Using following html, while loading the page div populated well,
<div class="form-right-card disabledInput" ng-init="showname==true" id="commodityContent">
<form name="commodityAttForm">
<div ng-repeat="loadCommodities in load.loadCommodities">
<div class="form-group33"> {{$index}} // here value prints correctly
<label class="form-label">Hazmat</label>
<input type="radio" class="form-btn-inactive" ng-click="changeHazmat('true',$index)" id="yes" name="hazmat" />
<label class="plsLabel" for="yes">Yes</label>
<input type="radio" class="form-btn-inactive" ng-click="changeHazmat('false',$index)" id="no" name="hazmat" />
<label class="plsLabel" for="no">No</label>
</div>
</div>
</form>
</div>
<button class="form-btn-link" ng-click="addMoreCommodities()">+ Add Commodity</button>
I am able to generate the div with all the inputs when clicking on the button. Problem is, I am sending the $index to controller on ng-click of the radio buttons, while clicking on the radio buttons, I am calling the function changeHazmat('true',$index) here the index is always 0, even when I have an array with a length greater than 1.
$scope.changeHazmat = function(selected, val) {
console.log("val" + val);
$scope.parentload.loadCommodities[val].isHazmat = selected;
Log is always printing the index as 0.
Can someone help me here, what am I doing wrong?
You are correctly passing the $index the controller and the code should work.
However I would recommend to use ngModel with ngValue directive.
<input type="radio" ng-model="loadCommodities.isHazmat" ng-value=true name="hazmat" />
(function(angular) {
'use strict';
angular.module('myApp', [])
.controller('Controller', ['$scope', function($scope, ) {
$scope.parentload = {
loadCommodities: []
};
$scope.addMoreCommodities = function() {
$scope.parentload.loadCommodities.push({
'isHazmat': false,
'dimension': 'IN'
});
}
$scope.addMoreCommodities();
$scope.changeHazmat = function(booleans, val) {
$scope.parentload.loadCommodities[val].isHazmat = booleans;
};
}]);
})(window.angular);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="Controller">
<div ng-repeat="loadCommodities in parentload.loadCommodities">
<div class="form-group33">
<label class="form-label">Hazmat</label>
<input type="radio" ng-model="loadCommodities.isHazmat" ng-value=true name="hazmat" />
<label class="plsLabel" for="yes">Yes</label>
<input type="radio" ng-model="loadCommodities.isHazmat" ng-value=false name="hazmat" />
<label class="plsLabel" for="no">No</label>
</div>
<p>{{parentload.loadCommodities}}</p>
</div>
</div>
</div>
I'm wondering if the problem is you're assigning the same "id" ('yes' and 'no') to multiple divs (ie inside the loop). It might be the reason the $index isn't working for you. If you remove the id's for the time being and re-try, I'm thinking the problem goes away.
I have a form with angular, but when I try to call $scope.myForm.$setSubmitted() it crashes. What am I doing wrong?
I get this error:
$scope.myForm.$setSubmitted is not a function
It should be possible, based on the docs.
$setSubmitted();
Sets the form to its submitted state.
I also seem to have some problem with $touched in the line:
ng-if="myForm.myValue.$error.min && (myForm.myValue.$touched || myForm.$submitted)"
So, two questions,
Why can't I call $setSubmitted()?
Why can I not get the $touched flag from the input?
angular.module('myApp', []).controller('myController', ['$scope', function($scope){
var vm = this;
vm.submitTheForm = function(){
$scope.myForm.$setSubmitted();
}
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="myController as ctrl">
<form name="myForm" ng-submit="ctrl.submitTheForm()" >
<input type="submit" value="submit" text="foo">
<input type="number" class="" name="myValue" max="10" ng-model="foo" max="10" min="0" number="{}" placeholder="enter a number" />
<div ng-if="myForm.myValue.$error.min && (myForm.myValue.$touched || myForm.$submitted)">Must be a positive number. This should be seen if input is touched or the form is submitted.</div>
<div ng-if="myForm.myValue.$error.max && (myForm.myValue.$touched || myForm.$submitted)">Cannot be larger than 10. This should be seen if input is touched or the form is submitted.</div>
<br/>
<br/>
<tt>myForm.myValue.$valid = {{myForm.myValue.$valid}}</tt><br/>
<tt>myForm.myValue.$touched = {{myForm.myValue.$touched}}</tt><br/>
<tt>myForm.myValue.$error.min = {{myForm.myValue.$error.min}}</tt><br/>
<tt>myForm.myValue.$error = {{myForm.myValue.$error}}</tt><br/>
<tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
<tt>myForm.$submitted = {{myForm.$submitted}}</tt><br/>
<tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
</form>
</div>
</div>
You are using AngularJS v1.2.23 which does not support $setSubmitted() AngularJS v1.2.3, it's only supported after v1.3.0
$scope.myForm.$setSubmitted is not a function!
This solution may not be very specific to this question but generally we get this error when we try to assign setSubmitted to an object instead of a function.
$scope.myForm.$setSubmitted = function(){} will solve the problem.
I hope my issue is simple to solve, I can't access the value by ng-model because i have multiple of these boxes as they are rendered as part of a list of inputs in a form. I am trying to get the ID and text value of a text box with ng-change. heres my html:
<input type="text" class="other-box" ng-model="test" id="4" ng-change="otherBoxUpdate(this)"/>
(ng-model is required, which is why it's in there). Hers is my controller snippet:
$scope.otherBoxUpdate = function (obj, $event) {
console.log(obj)
console.log($event)
console.log($event.target)
}
obj seems to return a scope value, however from what i've read I need to access $event.target, however $event is not defined. What am i doing wrong?
ng-change not allow to pass $event as parameter.
ng-change="otherBoxUpdate(test)"
var myapp = angular.module('app', []);
myapp.controller('Ctrl', function ($scope) {
$scope.otherBoxUpdate = function (obj) {
console.log(obj);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="Ctrl as vm">
<input type="text" class="other-box" ng-model="test" id="4" ng-change="otherBoxUpdate(4)"/>
</div>
If you only need to identify the input that was clicked, you can pass some other piece of identifying information to your handler. For example, we can pass the id:
<input type="text" class="other-box" ng-model="test" id="4" ng-change="otherBoxUpdate(4)"/>
I'm currently using one check box to toggle the disabled attribute on 8 form elements. I've used the ngDisabled Directive on each element. I'm searching for a way that I wouldn't have to put the directive on each of the 8 elements. Is this possible?
Checkbox Toggle
<input type="checkbox" ng-model="aircraftOnGround" />
Current working Disabled directive being used on each form element
ng-disabled="aircraftOnGround"
Codepen here:
CodePen
You can use a fieldset to disable every field inside it.
var $scope = {};
var myApp = angular.module('myApp', []);
myApp.controller('formCtrl', ['$scope', function($scope){
$scope.aircraftOnGround = 'true';
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp">
<form ng-controller="formCtrl">
<fieldset ng-disabled='aircraftOnGround'> <!-- USE NG_DISABLE HERE -->
<input type="text">
<input type="text">
</fieldset>
<br>
<b>aircraftOnGround:</b> <button type="button" ng-click="aircraftOnGround = !aircraftOnGround"><span ng-bind="aircraftOnGround"></span></button>
</form>
</body>
You can disable a collection of DOM elements using a watcher in your controller.
myapp.controller('mainCtrl', function($scope, $element){
$scope.aircraftOnGround = false;
$scope.name = "abdullah";
$scope.$watch('aircraftOnGround',function(value) {
$element.find('.form-control').prop('disabled',value);
});
});
Note: I'm using jQuery in the example.
i want to alert hidden value in this sample angularjs example. but not alert hidden value. why?
function TestController($scope) {
$scope.id = "";
$scope.test = function () {
alert($scope.id)
};
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app ng-controller="TestController">
<input type="hidden" name="id" ng-value="12"></input>
<input type="submit" ng-click="test()" value="alertHiddenValue"></input>
</div>
ng-value isn't what you're looking for here. In Angular, you use ng-model to bind a controller value to your view element's value, like this:
function TestController($scope) {
$scope.id = "12"; // Initial value can be set here
$scope.test = function () {
alert($scope.id);
};
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app ng-controller="TestController">
<!-- ngModel is used to two-way bind between your value & your controller -->
<input type="hidden" name="id" ng-model="id"></input>
<input type="submit" ng-click="test()" value="alertHiddenValue"></input>
</div>
You need to bind value to id using ng-model and also instead of using ng-value use ng-init to initialize it. Also as mentioned by #RGraham, if you want to have default value try to initialize it in controller.
ng-value is used for binding value to or input [radio/checkbox], see here.
function TestController($scope) {
$scope.id = "";
$scope.test = function () {
alert($scope.id)
};
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app ng-controller="TestController">
<input type="hidden" name="id" ng-model="id" ng-init="id=12"></input>
<input type="submit" ng-click="test()" value="alertHiddenValue"></input>
</div>