When using angular's (1.5) forms support, I would expect that when a field is disabled, it should not be marked as invalid, because the user cannot possibly change the value.
However, as seen in the plunker below, where a field is required, but can be switched from enabled to disabled and visa versa by the checkbox, the form validation result does not change, the whole form is still invalid, although the value cannot be changed if the field is disabled.
http://plnkr.co/edit/OMZkoPgPZcHjO67JF88c?p=preview
Together with showing validation messages and submitting the form this poses a problem in UX and flexibility to use the angular validations to determine the state of the form and if it is ok to "submit it" (send AJAX to the server).
(the code below is in the plunker, I just pasted it here, because the code is required when linking plunker)
<form name="vm.form" novalidate>
<input ng-model="vm.model" ng-disabled="vm.disabled" required />
<label><input type="checkbox" ng-model="vm.disabled" />Disable field</label>
</form>
Form is invalid: {{vm.form.$invalid}}
Ok preety much here you dont normally do ng-disabled on the fields just on like the submit button as shown:
<input ng-model="vm.model" ng-minlength="4" ng-required="true"/>
<label><input type="checkbox" ng-model="vm.disabled" ng-required="true"/>Disable field</label>
<br><input type="submit" ng-disabled="vm.form.$invalid"/>
</form>
Form is invalid: {{vm.form.$invalid}}
</body>
</html>
Now if you try this it will work correctly as shown in Plunker.
you can manipulate the value of ng-required value based on whether the checkbox value is checked or not
<!DOCTYPE html>
<html ng-app="app">
<head>
<script data-require="angularjs#1.5.0" data-semver="1.5.0" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.0/angular.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body ng-controller="Asd as vm">
<form name="vm.form" novalidate>
<input ng-model="vm.model" ng-disabled="vm.checkbox" ng-required="vm.checkbox===false" />
<label><input type="checkbox" ng-model="vm.checkbox" />Disable field</label>
<input ng-model="vm.other" required/>
</form>
Form is invalid: {{vm.form.$invalid}}
</body>
</html>
Related
I've been through all of similar/relative topics on ng-maxlength on StackOverflow, but still could not find an answer. My problem is the following snippet of code:
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<div class="form-group field keywords-input-block">
<label>Keywords</label>
<form name="keywords">
<input class="form-control searchKeywordValidator"
type="text"
placeholder="Enter keywords..."
ng-maxlength="5"
name="keywordInput"
ng-model="vm.jobList.keywords">
<h1 ng-if="!keywords.keywordInput.$valid">The value is too long</h1>
</form>
</div>
The error message, which should be displayed only if the input is invalid, is constantly shown! Any advise on what it the reason for that and how could I get rid of it would be highly appreciated!
All angularjs applications must have a root element in order to allow angularjs to be able to effective on your view. And that is ng-app directive. This directive is to auto-bootstrap an AngularJS application
You must add it somewhere to the root element
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<div class="form-group field keywords-input-block" ng-app="">
<label>Keywords</label>
<form name="keywords">
<input class="form-control searchKeywordValidator"
type="text"
placeholder="Enter keywords..."
ng-maxlength="5"
name="keywordInput"
ng-model="vm.jobList.keywords">
<h1 ng-if="!keywords.keywordInput.$valid">The value is too long</h1>
</form>
</div>
Read more about it here
Why is AngularJS not checking the step="0.01" attribute of the second input? For min and max attributes it works perfectly, but not for the step attribute.
For example: The input 0,005 will evaluate submitNewEntryForm.submitNewEntryAmount.$valid to true, but it shouldn't.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<div ng-app="">
<form class="form-inline" name="submitNewEntryForm">
<div class="form-group" ng-class="submitNewEntryForm.submitNewEntrySubject.$valid ? 'has-success' : 'has-error'">
<label for="subject">Betreff:</label>
<input type="text" class="form-control" id="subject" required name="submitNewEntrySubject" ng-model="submitNewEntrySubject">
</div>
<div class="form-group" ng-class="submitNewEntryForm.submitNewEntryAmount.$valid ? 'has-success' : 'has-error'">
<label for="amount">Betrag:</label>
<input type="number" class="form-control" id="amount" required name="submitNewEntryAmount" ng-model="submitNewEntryAmount" step="0.01" min="0" max="99999">
</div>
<button type="submit" class="btn btn-primary" ng-disabled="!(submitNewEntryForm.submitNewEntrySubject.$valid && submitNewEntryForm.submitNewEntryAmount.$valid)" ng-click="">Submit</button>
</form>
</div>
Add regex, like \d+\.\d{0,2}
You can use HTML5 pattern="^\d+\.\d{0,2}$" or ng-pattern="^\d+\.\d{0,2}$". It changes error state without limiting html input to 2 decimal points.
To be strict, you should use ^\d{1,5}\.\d{,2}$
If you want number to have 2 decimal point but allow it to be without leading 0 like .01, you can use ^\d*\.\d{2}$
I didn't realize that there was a Angular directive for the step attribute. If you look at the documentation, it seems to be a very recent addition.
I find no mention of the step attribute until you get to a build of the un-released 1.5.9 version.
Latest version: https://docs.angularjs.org/api/ng/input/input%5Bnumber%5D
Notice in the "Usage" and "Arguments" sections that the step directive is listed. Now use the pull down menu in the upper left to change the version, and observe that there is no mention of the step directive.
Either this is a brand new, unreleased feature... or perhaps the documentation for older versions is not correct :)
I have an AngularJS single page application. One view has a textbox that I want to only accept numbers for an integer field. I have entered this code in the controller and this textbox in the view, but when I run the view it accepts any keyboard characters. Can you tell me how I need to modify this to work?
$scope.FilterNumbersOnly = /^\d+$/;
<input ng-model="x.COLUMN_VALUE" ng-pattern="FilterNumbersOnly" />
From the AngularJS documentation, ng-pattern will set the pattern key on the error object when the values input into the text-based field do not pass the specified regex test.
This says nothing about prohibiting users from inputting text. If you would like to add that behavior, you need to listen to the pattern key on the error object and attach handlers to it. When the input is invalid, the error object will reflect this, and you should respond by preventing user input. Or you can take whatever such action you deem necessary.
To prevent user input, you can set the disabled attribute on the input field when the pattern key on the error object is set.
One simple way to accomplish this is with the ng-if directive.
<input disabled ng-if="!form.input.$valid" />
<input ng-if="form.input.$valid" />
Here is a link to a working example.
You can do it using:
ngChange directive;
ngMask module (Always I need handle inputs with masks I use it).
I made this snippet showing both ways:
(function() {
"use strict";
angular.module('app', ['ngMask'])
.controller('mainCtrl', function($scope) {
$scope.checkNumber = function() {
$scope.input = $scope.input.replace(/\D+/, '');
}
})
})();
<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.7/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ngMask/3.1.1/ngMask.min.js"></script>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
</head>
<body ng-controller="mainCtrl">
<form name="form" novalidate>
<label for="withoutMask">Input without mask: </label>
<input type="text" id="withoutMask" ng-model="input" ng-change="checkNumber()">
<hr>
<label for="mask">Input with mask: </label>
<input type="text" id="mask" mask="d" repeat="15" restrict="reject" limit="false" ng-model="otherInput">
</form>
</body>
</html>
why not use the built-in HTML support?
<input type="number">
supported - http://caniuse.com/#search=input%20type%3D%22number%22
I'm new to AngularJS and I am going through this link and I am curious to do the experiment on a text box control using ng-bind. But it is not working.
<html>
<title>AngularJS First Application</title>
<body>
<h1>Sample Application</h1>
<div ng-app="">
<p>Enter your Name: <input type="text" ng-model="name"></p>
<input type ="text" ng-bind="name" />
</div>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
</body>
</html>
How can I populate a text box using ng-bind?
As, The ngBind attribute tells Angular to replace the text content of the specified HTML element with the value of a given expression, and to update the text content when the value of that expression changes, you will not be able to bind to an input box:
<input type ="text" ng-bind="name" />
You can instead use ng-value
<input type="text" ng-value="name" />
or you can populate your input box using the model within the value attribute.
<input type="text" value="{{name}}" />
See this codepen
I want to set default value of checkbox to checked ie., user must see that check box is checked when opening the page for some reason it does not work while using angularjs
here is my code
<html ng-app>
<input type="radio" name="lookup" ng-model="lookup" value="1" ng-checked="lookup==1" checked>Employee Lookup</input>
<input type="radio" name="lookup" ng-model="lookup" value="2" ng-checked="lookup==2">Company Lookup</input>
</html>
Since you're using ngModel and value, the radio will automatically be selected if they match. Here is the HTML and JS:
<html ng-app ng-controller="testcontroller">
<input type="radio" ng-model="lookup" value="1">Employee Lookup</input>
<input type="radio" ng-model="lookup" value="2">Company Lookup</input>
</html>
function testcontroller($scope){
$scope.lookup = 1;
}
And here is a working jsFiddle demonstration: http://jsfiddle.net/BinaryMuse/ZQDts/3/ (You might have been having trouble with your jsFiddle because you misspelled ng-app.)