logo
down
shadow

Angular validation does not work


Angular validation does not work

By : user2953470
Date : November 21 2020, 01:01 AM
this one helps. I'm following a tutorial on AngularJS, now I'm stuck, I don't know what I'm doing wrong. , You need add attribute required to input tag
code :
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app>
        <form name="mijnFormulier" novalidate>
        <table>
            <tr>
                <td>Naam:</td>
                <td><input value="" ng-model="user.naam" name="naam" required />
                <td><span style="color: red" ng-show="mijnFormulier.naam.$dirty && mijnFormulier.naam.$invalid" ><span ng-show="mijnFormulier.naam.$error.required">Moet ingevuld worden</span></span></td>
            </tr>
       </table>
       </form>
</div>


Share : facebook icon twitter icon
Getting angular form validation to work without using ngSubmit

Getting angular form validation to work without using ngSubmit


By : bibhabchakraborty
Date : March 29 2020, 07:55 AM
Hope this helps It's not really clear whether you want to rely on HTML5 validation or on AngularJS validation. If it's the Angular validation that you want to use than you may simply use FormController to trigger the validation and error messages:
code :
<div ng-controller="MainCtrl">
  <form name="form" press-enter="add_entry()" novalidate>
    <input type="text" name="amount" ng-model="amount" required />
    <span ng-show="submitted && form.amount.$error.required">Amount is required</span>
  </form>
</div>
function MainCtrl($scope) {
    $scope.add_entry = function() {
        $scope.submitted = true;
        if($scope.form.$valid){
            console.log("Entry added");
        }
    }
};
Angular JS form validation does not seem to work

Angular JS form validation does not seem to work


By : chicopepino
Date : March 29 2020, 07:55 AM
I wish this help you In order for Angular to track changes on form inputs, they need to be defined as ng-model properties on the scope.
So, your demo will work if you add the appropriate ng-model attributes:
code :
<body data-ng-app="testapp">
<div data-ng-controller="testCtrl">
     <h1>Test {{name}}!!</h1>

    <form name="loginForm" action="login" novalidate>
        <input type="email" name="email" ng-model="email" placeholder="email" required/>
        <input type="password" name="password" ng-model="passowrd" placeholder="password" required/>
        <button type="submit" ng-disabled="loginForm.$invalid">Login</button>
        <p ng-show="loginForm.$invalid">Please fix your form.</p>
        <p ng-show="loginForm.email.$invalid">Please fix your email.</p>
        <p ng-show="loginForm.password.$invalid">Please fix your password.</p>
    </form>
</div>
<script>
    var testapp = angular.module('testapp', []);
    var testCtrl = function($scope) {
        $scope.name = 'validation';
    };
</script>
Angular directive for percentage input and validation (initial validation doesn't work)

Angular directive for percentage input and validation (initial validation doesn't work)


By : RUSDI MOHD
Date : March 29 2020, 07:55 AM
this will help Found a solution, but please feel free to suggest better ways, as I feel this is a work-around and doesn't look very elegant. If not, hope this helps someone else.
This part did the trick:
code :
var modelGetter = $parse(attrs.ngModel);
var initialValue = modelGetter(scope);
validatePercentage($filter('percentage')(initialValue, allowFraction ? 2 : 0));
    export function PercentageInputFormatter($parse, $filter) {
    return {
        restrict: 'A',
        require: 'ngModel',
        link: function (scope, element, attrs, vm) {
            if (vm) {

                var minNumber: number = 'min' in attrs ? parseFloat(attrs.min) : Number.MIN_VALUE;
                var maxNumber: number= 'max' in attrs ? parseFloat(attrs.max) : Number.MAX_VALUE;
                var allowFraction: boolean = 'fraction' in attrs ? attrs.fraction === 'true' : false;

                var modelGetter = $parse(attrs.ngModel);
                var initialValue = modelGetter(scope);
                validatePercentage($filter('percentage')(initialValue, allowFraction ? 2 : 0));

                vm.$parsers.push(function (value) {
                    return validatePercentage(value);
                });

                vm.$formatters.push(function (value) {
                    return $filter('percentage')(value, allowFraction ? 2 : 0);
                });

                function validatePercentage(value) {
                    if (value) {
                        var valid = !isNaN(parseFloat(value)) && isFinite(value) && parseFloat(value) >= minNumber && parseFloat(value) <= maxNumber;
                        if (!allowFraction)
                            valid = valid && value.indexOf('.') == -1;

                        vm.$setValidity('percentage', valid);
                    }

                    return valid ? value / 100 : undefined;
                }
            }
        }
    };
}
Unable to get angular 2 form validation to work

Unable to get angular 2 form validation to work


By : thayalan p
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , What is the state of active variable? It must be true because you have used the ngIf:
code :
<form *ngIf="active" (ngSubmit)="onSubmit()" #heroForm="ngForm">
Why Angular pattern validation does not work?

Why Angular pattern validation does not work?


By : user3219540
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Since you're passing a string to form a regex (not a regex itself), you need to double escape it.
Try
code :
latitude: [null, [Validators.pattern("^\\d+\\.\\d+$")]],
Related Posts Related Posts :
  • Angularjs - add ng-* attributes using directives
  • Why are my Angular, absolute path, URL's not compiling properly with Closure Compiler?
  • AngularJS routing not working properly in PhoneGap
  • AngularJS: Create new scope variable name using a variable value
  • Directive scope update does not update controller scope (AngularJs)
  • Unit-test a angular controller function in a directive
  • jQuery Sparkline in a cell in ng-grid using CellTemplate and Directive
  • AngularJS determine filter in controller
  • How to deploy an app using ionic framework to Amazon? (elastic beanstalk prefered)
  • Conditional injection of a service in AngularJS
  • Filtering on object properties not working
  • Open $modal from the service and pass variables to the controller
  • ngClick evaluated against scope instead of isolateScope
  • onEnter and onExit are not called when state is left/activated in angularjs ui router
  • Shared client & server modules with angularjs and pongular
  • Getting the angular app to run when using protractor
  • Angularjs: create a link for download different types of file
  • AngularJS: On Change of Parent DropDown Option Also Changes the Dependant Drop Down Options Associated with Other Parent
  • Angular HTML5 mode, Wordpress, Rewrites, Apache and You
  • Using angular js form validations in <form:input> tag
  • AngularJS call common functions in a directive template
  • AngularJS Promise resolved incorrectly
  • properly clearing whole AngularJS ui-grid chart
  • Can not figure out how to store $rootScope in angular.bootstrap
  • animate.css animation within angularjs 1.3 using ngAnimate gives different animations in Firefox
  • Auth0 IE Issue: Unable to get property 'frames' of undefined or null reference
  • Am I misusing directives with too much logic?
  • Use an Angular JS value as a parameter of TWIG "path" function in Symfony 2
  • multiple function on ng-click angularjs
  • Converting $.ajax call to $http call in angular 404 error
  • Angularjs templateUrl file location not found
  • How to execute the function after change page in angularjs?
  • Pass variable to AngularJS directive without isolated scope
  • OAuth, Custom Login, or Both
  • Angular Directive: Isolate Scope & Transclude is true, but HTML in the directive needs to continue to bind to parent
  • Compare objects in angularjs
  • Combine "Checkbox" & "Avatar" in an Ionic Framework List
  • Issue with the Angular UI router when inheriting from a parent state
  • Is there a way to initialize an Angular Service without DI into controller
  • Why is a parent controller's $scope not accessible from a (child) directive?
  • How to get back button in Ion-tabs page
  • AngularJS bind class attribute to model
  • How can I get AngularJS ui-router to respond correctly to a browser page refresh?
  • Breez Create Complex Entities
  • Drag and drop using protractor in dthmlx component
  • In Angular JS, what is the default 'cache' value that is used when sending request with $http service?
  • How to change placeholder for single textbox in angular?
  • $ is not defined - jquery angular mixing
  • CORS issue angularjs and spring security
  • Angularjs cannot select last item in dropdown the first time
  • Angularjs - $watch issue
  • On change radio button to no the span should hide in angular
  • Creating a wordcloud generator in Angularjs
  • Angular UI Bootstrap collapse - whats wrong?
  • AngularJS after redirect from app to app, the default page is not loading
  • Why does my scope update my factory and my factory update my scope when it should not?
  • AngularJS testing $httpBackend.whenGET().respond() not working with number as parameter
  • Setting up Login in Angular App
  • Retrieve value that is stored in db and display in select box using angularjs and laravel
  • Binding nested array in Angular view
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org