I'm trying to use Angularjs validation to enable a button when at least one input from a list is filled in. What I'm working on is similar to the following w3schools example:
<head>
<script src= ".3.14/angular.min.js"></script>
</head>
<body>
<h2>Validation Example</h2>
<form ng-app="myApp" ng-controller="validateCtrl" name="myForm" novalidate>
<p>Username:<br>
<input type="text" name="user" ng-model="user" required>
<span style="color:red" ng-show="myForm.user.$dirty && myForm.user.$invalid">
<span ng-show="myForm.user.$error.required">Username is required.</span>
</span>
</p>
<p>Email:<br>
<input type="email" name="email" ng-model="email" required>
<span style="color:red" ng-show="myForm.email.$dirty && myForm.email.$invalid">
<span ng-show="myForm.email.$error.required">Email is required.</span>
<span ng-show="myForm.email.$error.email">Invalid email address.</span>
</span>
</p>
<p>
<input type="submit" ng-disabled="myForm.user.$dirty && myForm.user.$invalid || myForm.email.$dirty && myForm.email.$invalid>"
</p>
</form>
<script>
var app = angular.module('myApp', []);
app.controller('validateCtrl', function($scope) {
$scope.user = 'John Doe';
$scope.email = '[email protected]';
});
</script>
</body>
I tried adding a div containing two inputs with a "required" tag as follows but to no avail:
<div name="address" ng-model="address" required>
<input name="address1" ng-model="address1">
<input name="address2" ng-model="address2">
What would be the best way to do this with angular validation?
I'm trying to use Angularjs validation to enable a button when at least one input from a list is filled in. What I'm working on is similar to the following w3schools example:
<head>
<script src= "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
</head>
<body>
<h2>Validation Example</h2>
<form ng-app="myApp" ng-controller="validateCtrl" name="myForm" novalidate>
<p>Username:<br>
<input type="text" name="user" ng-model="user" required>
<span style="color:red" ng-show="myForm.user.$dirty && myForm.user.$invalid">
<span ng-show="myForm.user.$error.required">Username is required.</span>
</span>
</p>
<p>Email:<br>
<input type="email" name="email" ng-model="email" required>
<span style="color:red" ng-show="myForm.email.$dirty && myForm.email.$invalid">
<span ng-show="myForm.email.$error.required">Email is required.</span>
<span ng-show="myForm.email.$error.email">Invalid email address.</span>
</span>
</p>
<p>
<input type="submit" ng-disabled="myForm.user.$dirty && myForm.user.$invalid || myForm.email.$dirty && myForm.email.$invalid>"
</p>
</form>
<script>
var app = angular.module('myApp', []);
app.controller('validateCtrl', function($scope) {
$scope.user = 'John Doe';
$scope.email = '[email protected]';
});
</script>
</body>
I tried adding a div containing two inputs with a "required" tag as follows but to no avail:
<div name="address" ng-model="address" required>
<input name="address1" ng-model="address1">
<input name="address2" ng-model="address2">
What would be the best way to do this with angular validation?
Share Improve this question edited Dec 4, 2019 at 2:23 Dale K 27.2k15 gold badges56 silver badges82 bronze badges asked Apr 7, 2015 at 8:14 ChockenChocken 532 silver badges8 bronze badges 1- I found a similar question: stackoverflow.com/questions/13466133/… – okanozeren Commented Apr 7, 2015 at 8:30
5 Answers
Reset to default 13The ng-required directive can help you for your this like conditional requirement needs.
For example:
<div name="addresses">
<input name="address1" ng-model="address1" ng-required="!address2">
<input name="address2" ng-model="address2" ng-required="!address1">
</div>
I'd use ng-required for that case
<input ng-required="mustBeFilled()" ng-model="myModel" />
<input ng-required="mustBeFilled()" ng-model="myOtherModel" />
then
$scope.mustBeFilled = function () {
if($scope.myModel.length || $scope.otherModel.length){
return false
} else {
return true
}
}
so as soon as one input is filled the inputs won't be required, using require gives you control over some functionalities like using classes from form to display messages
and for submit button you can add
ng-disabled="formName.$invalid"
Try the code below. Working Plunker
<div ng-controller="ExampleController">
<form name="userForm" novalidate >
Name:
<input type="text" name='userName' ng-model="firstName" required />
</form>
<input type = 'button' id="buttonId" value = 'Submit' ng-disabled="!userForm.userName.$dirty"/>
</div>
Here is how I solved it including validation. Of course ng-pattern optional if needed. Thank you for this post!
var myApp = angular.module('myApp', []);
myApp.controller('MainController', ['$scope',
function($scope) {
$scope.checkSubmit = function() {
if ($scope.myform.$valid) {
//should also be valid if only one number is available
alert('form is valid...');
}
}
}
]);<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<html>
<head>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
</head>
<body ng-app="myApp">
<div class="container-fluid" ng-controller="MainController">
<form name="myform" ng-submit="checkSubmit()" novalidate>
<!-- mobile -->
<div class="form-group" ng-class="{'has-error': (myform.$submitted && myform.mobile.$invalid) || (myform.mobile.$invalid && !myform.mobile.$pristine)}">
<label class="col-sm-2 control-label" for="mobile">Mobile: *</label>
<div class="col-xs-12">
<input ng-required="!data.home" id="mobile" name="mobile" type="tel" class="form-control" ng-model="data.mobile">
</div>
</div>
<!-- home -->
<div class="form-group" ng-class="{'has-error': (myform.$submitted && myform.home.$invalid) || (myform.home.$invalid && !myform.home.$pristine)}">
<label class="col-sm-2 control-label" for="home">Home: *</label>
<div class="col-xs-12">
<input ng-required="!data.mobile" id="home" name="home" type="tel" class="form-control" ng-model="data.home">
<div ng-class="{'has-error': ((myform.$submitted && myform.mobile.$invalid) || (myform.mobile.$invalid && !myform.mobile.$pristine)) || ((myform.$submitted && myform.home.$invalid) || (myform.home.$invalid && !myform.home.$pristine))}">
<span class="help-block">Please enter at least one phone number.</span>
</div>
</div>
</div>
<!-- Button (Double) -->
<div class="form-group">
<div class="col-xs-12 buttons">
<button id="button" type="submit" name="button" class="btn btn-info">Submit</button>
</div>
</div>
</form>
<!-- info -->
<div class="row">
<div class="col-xs-12">
<br/>Mobile -> {{myform.mobile.$valid}} - {{myform.mobile.$error}}
<br/>Home -> {{myform.mobile.$valid}} - {{myform.mobile.$error}}
</div>
</div>
</div>
</body>Require them to have entered something into one of the fields as follows:
ng-disabled="!user && !email"