I am trying to display validation message for text field which is not working for below code -
<form name="dummy">
<bloglist></bloglist>
</form>
<script type="text/ng-template" id="my">
<div>
<input type="text" name="first" ng-model="sample.hai" required/>
<span ng-show="dummy.first.$error.required">Required</span>
</div>
</script>
<script>
angular.module("DemoApp" [])
.component( 'bloglist' , {
templateUrl: 'my.html',
controller: function ($scope) {
}
});
</script>
AngularJS has bindings that you will use in place of HTML attributes in some cases. Instead of using native HTML5 required on your <input> use ng-required="true".
(edit) link to relevant documentation: https://docs.angularjs.org/api/ng/directive/ngRequired#!
(edit):
In your particular case, the form name in the template that invokes your directive is not accessible inside your directive. We give the directive form a unique name.
Additionally, using angularjs to display your (custom) error message can be done using ngMessages.
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.7.5/angular-messages.js"></script>
<body ng-app="DemoApp">
<form name="dummy">
<bloglist></bloglist>
</form>
</body>
<script src="/scripts/vendors/angular-messages/angular-messages.js"></script>
<script type="text/ng-template" id="my.html">
<div ng-form="directiveForm">
<input type="text" name="first" ng-model="sample" required/>
<pre>{{ directiveForm.first.$error | json }}</pre>
<div ng-messages="directiveForm.first.$error" style="color:maroon" role="alert">
<div ng-message="required">You did not enter a field</div>
</div>
</div>
</script>
<script>
angular.module("DemoApp", ['ngMessages'])
.component('bloglist', {
templateUrl: 'my.html',
controller: function($scope) {
}
});
</script>
Related
I'm trying to use AngularJS to validate a form, with the following code:
HTML
<body ng-app="plunker" ng-cloak>
<div ng-controller="MainCtrl as ctrl">
<form name="ctrl.mForm" novalidate>
<input type="text" name="Name" required />
<div ng-show="ctrl.mForm.Name.$invalid">Required</div>
<input type="submit" ng-click="send()" />
</form>
</div>
</body>
JS
import angular from 'angular';
angular.module('plunker', []).controller('MainCtrl', function($scope) {
var vm = this;
vm.send = function () {
alert('ok');
}
});
Plunker
I need to show a div when the input is empty (when the user clicks the submit button is enough), however nothing happens.
What is wrong with this code that it is unable to show the <div> when the input is empty?
Your controler code should have the variable for Name:
angular.module('plunker', []).controller('MainCtrl', function($scope) {
var vm = this;
vm.Name = "";
vm.send = function () {
alert('ok');
}
});
and your input control should use that variable in ng-model
<input type="text" name="Name" ng-model="Name" required />
Here i have updated the plunker
You should use ng-model to validate using angular. i have updated that in plunker. and if you want to use default validation of html required field you should submit form using ng-submit direactive on form element
You have to change the name of your form to "mForm". And on the div you want to show, you have to check if the name field is invalid and if the form got submitted.
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="lib/style.css">
<script src="lib/script.js"></script>
</head>
<body ng-app="plunker" ng-cloak>
<div ng-controller="MainCtrl as ctrl">
<form name="mForm" novalidate>
<input type="text" ng-model="name" name="name" required />
<div ng-show="mForm.name.$invalid && mForm.$submitted"">Required</div>
<input type="submit" ng-click="send()" />
</form>
</div>
</body>
</html>
See this Plunker
I am working on uib-popover recently, I found a problem that I am confused with.
I want to popover a template, in this template I have an input, at first the input have initial value.
I want to update the content real-time based on the input. When I just bind a variable, it does not work, while if I bind an object, it works. I can't figure this problem out.
index.html
<!doctype html>
<html ng-app="ui.bootstrap.demo">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-animate.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular-sanitize.js"></script>
<script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-2.4.0.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div ng-controller="PopoverDemoCtrl">
<hr/>
<hr/>
<hr/>
<button uib-popover-template="'myPopoverTemplate.html'" popover-placement="bottom-left" type="button" class="btn btn-default">Popover With Template</button>
{{dynamicPopover.title}}
<script type="text/ng-template" id="myPopoverTemplate.html">
<div class="form-group">
<input type="text" ng-model="dynamicPopover.title" class="form-control">
</div>
</script>
<button uib-popover-template="'inputContent.html'" popover-placement="bottom-left" type="button" class="btn btn-default">Popover With Template</button>
{{inputContent}}
<script type="text/ng-template" id="inputContent.html">
<div class="form-group">
<input type="text" ng-model="inputContent" class="form-control">
</div>
</script>
</div>
</body>
</html>
example.js
angular.module('ui.bootstrap.demo', ['ngAnimate', 'ngSanitize', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('PopoverDemoCtrl', function($scope, $sce) {
$scope.dynamicPopover = {
title: 'Title'
};
$scope.inputContent = "hello";
});
Here is the plunker example https://plnkr.co/edit/IPXb5tddEPQPPAUrjdYx?p=preview, you could have a try.
You made an interesting point in your second plunk. I didn't catch this the first time but I think it may be because you are doing your popover input in a script tag. I would suggest using a custom directive if you could versus just doing it in an inline script. That way it is kept up to date with angular's digest cycle.
Example Directive:
customPopoverApp.directive('customPopover',['$compile','$templateCache',function($compile,$templateCache){
return {
restrict:'A',
transclude:true,
template:"<span>Click on me to show the popover</span>",
link:function(scope,element,attr){
var contentHtml = $templateCache.get("customPopover.html");
contentHtml=$compile(contentHtml)(scope);
$(element).popover({
trigger:'click',
html:true,
content:contentHtml,
placement:attr.popoverPlace
});
}
};
}]);
And to use it:
<button custom-popover="" popover-place="bottom">click on me to show the popover</button>
{{message}}
<script type="text/ng-template" id="customPopover.html">
<div class="form-group">
<input type="text" ng-model="message" class="form-control">
</div>
</script>
Here is a working plunk. I hope this is what you're looking for
I am new to Angular JS. Here is my html :
<!DOCTYPE html>
<html>
<head>
<title>My App</title>
<script src = "angular.js"></script>
</head>
<body ng-app="myApp">
<div ng-controller="index">
{{message}}
</div>
<form>
First Name:<br>
<input type="text" ng-model="user.username">{{user.username}}<br>
Last Name:<br>
<input type="password" ng-model="user.password">
</form>
<script src = "app.js"></script>
<script src = "credentials.js"></script>
</body>
</html>
Then I want to initialize some data for username and password :
(function(){
var app=angular.module("myApp",[]);
app.controller("index", ["$scope", function($scope){
$scope.message="Hello, it's me!";
$scope.user={
username: "admin",
password: "admin"
};
}]);
})();
The username and password doesn't get displayed. Why?
You're problem is that you have bound the controller to the div-tag surrounding the {{message}} expression and not the whole block containing the form. If bind your controller to a surrounding element youre code will work as expected.
Here's one way to do this:
<body ng-app="myApp">
<div ng-controller="index">
<div>
{{message}}
</div>
<form>
First Name:<br>
<input type="text" ng-model="user.username">{{user.username}}<br>
Last Name:<br>
<input type="password" ng-model="user.password">
</form>
</div>
</body>
Your controller div is not covering the area where you have user object. controller div must include the code in which you are accessing user object
You can change the code like this
<body ng-app="myApp">
<div ng-controller="index">
{{message}}
<form>
First Name:<br>
<input type="text" ng-model="user.username">{{user.username}}<br>
Last Name:<br>
<input type="password" ng-model="user.password">
</form>
</div>
<script src = "app.js"></script>
<script src = "credentials.js"></script>
</body>
<div ng-app="">
<p>Name: <input type="text" ng-model="name"></p>
<p ng-bind="name"></p>
</div>
as you can see in this example
ng-model directive binds the value of HTML controls (input, select,
textarea) to application data. ng-bind directive binds application
data to the HTML view.
i can see ng-model in your code but there is not ng-bind which actually binds data to your view. probably that is the reason why your code is not displaying username and password.
With the ng-model directive you can bind the value of an input field to a variable created in AngularJS.
You can use the ng-bind directive, which will bind the innerHTML of the element to the specified model property:
ng-model for input elements like input, textarea and ng-bind for h1,label etc.
<!DOCTYPE html>
<html>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<body>
<div ng-controller="index" ng-app="myApp">
<form>
First Name:
<br>
<input type="text" ng-model="user.username">
<br> Last Name:
<br>
<input type="password" ng-model="user.password">
</form>
</div>
<script>
var app = angular.module("myApp", []);
app.controller("index", ["$scope", function($scope) {
$scope.user = {
username: "admin",
password: "admin"
};
}]);
</script>
</body>
</html>
As,Venu prasad H S and domyos already suggested , a reply to the comment of M. Ko as i don't have enough reputation to comment,
You have defined the ng-model out of the scope of the controller,
<div ng-controller="index">
{{message}}
</div>
What this does is that your controller can access only the stuff inside this div only, as many others suggested you can put an entire div in the body you can do
<body ng-app="myApp">
<div ng-controller="index">
<div>
{{message}}
</div>
<form>
First Name:<br>
<input type="text" ng-model="user.username">{{user.username}}<br>
Last Name:<br>
<input type="password" ng-model="user.password">
</form>
</div>
As very aptly provided by domyos , now what this does is that your controller can get to your form and you can display the values you desire.
Alternatively you can also but your controller in the body tag with your ng-app
<body ng-app="myApp" ng-controller="index">
but it is recommended that you put it inside a div, you want to do this so that you can have multiple controllers in one module i.e. on ng-app.
Also, try to name controller as "indexCtrl" as in IndexController it is just a naming convention but that makes your code more readable.
Hope you find this information useful.
Use ng-app and ng-controller directives in your HTML page.
Here is link of Plunker for the same.
Plunker
And donot forget to give reference
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
I'm trying to use the Angular Materials snippet for a form input field with ng-messages for displaying error messages.
When I clear and fill this field multiple times, it somehow stores the 'old' error messages, showing x times 'Address is mandatory'.
If I remove the element outside the md-input-container, it works fine (but I want the ng-messages inside the md-input-container obv).
<div layout-gt-sm="row" ng-show="showAddress">
<md-input-container class="md-block" flex-gt-sm="">
<md-icon md-font-library="material-icons">home</md-icon>
<label>Adres</label>
<input ng-model="address" name="address" required />
<div ng-messages="orderForm.address.$error" role="alert">
<div ng-message="required">Address is mandatory</div>
</div>
</md-input-container>
</div>
Update:
Ok I was using an older version of Angular and Angular-Animate (1.3.15).
Updating this resulted in the fix.
First check if you have ngMessages injected in your module again, second you can check if you have a form with the name 'orderForm' and last you must check if your ng-model has a controller or something where you have the data.
<html>
<head>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/angular_material/1.0.0/angular-material.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular-messages.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-animate.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-aria.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-sanitize.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angular_material/1.0.0/angular-material.min.js"></script>
<style type="text/css">
</style>
</head>
<body ng-app="testApp" ng-controller="AppCtrl">
<form name="orderForm">
<div layout-gt-sm="row" >
<md-input-container class="md-block" flex-gt-sm="">
<label>Address</label>
<input ng-model="address" name="address" required />
<div ng-messages="orderForm.address.$error" role="alert">
<div ng-message="required">Address is mandatory</div>
</div>
</md-input-container>
</div>
</form>
<script type="text/javascript">
var app = angular.module("testApp", ["ngMaterial","ngMessages"])
.controller('AppCtrl', function($scope) {
$scope.address = 'Prueba';
});
</script>
</body>
</html>
Had the same issue, installing ngMessages into your app resolved this issue for me.
What is the recommended way to submit a form with angularjs. Will all the different form fields be automatically turned into JSON?
<DOCTYPE html>
<html>
<head></head>
<body>
<div ng-app='mymodule' ng-controller="PeopleController as pc">
<form name="myform" ng-submit="pc.submit(person)">
<input ng-model="person.name"/>
<input ng-model="person.age"/>
<input type="submit" />
</form>
</div>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.0-rc.0/angular.min.js"></script>
<script>
(function (){
angular.module('mymodule',[])
.controller('PeopleController',function($scope,$http) {
$scope.person={'name':'john'};
this.submit = function(p){$http.post('/path/to/my.php',p).success(function(e){console.log(e);});};
});
})();
</script>
</body>
</html>