Angularjs ngDisabled comparison expression not evaluating correctly
21,118
Solution 1
Remove the curlies around your ng-disabled attribute.
Solution 2
Here's the way it worked for your plunk:
<input type="button" value="Continue" ng-disabled="startertext != inputfield">
Don't forget to remove the extra curlie in your controller (marked by an error sign when I opened it in the editor).
Author by
Simon McClive
Updated on July 09, 2022Comments
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Simon McClive almost 2 years
I am attempting to have a button be enabled or disabled in an angularjs app based on whether a comparison of two text fields evaluates to true or false. I have provided example code below and also made it available in a plunker here http://plnkr.co/edit/rzly8hy21048YGzsx2gW?p=preview
As you can see when you input a string to match the stored string the expression evaluates correctly however the button never becomes available.
Any help would be appreciated.
Here is the HTML
<!DOCTYPE html> <html ng-app="plunker"> <head> <meta charset="utf-8" /> <title>AngularJS Plunker</title> <script>document.write('<base href="' + document.location + '" />');</script> <link rel="stylesheet" href="style.css" /> <script data-require="[email protected]" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.16/angular.min.js" data-semver="1.2.16"></script> <script src="app.js"></script> </head> <body ng-controller="MainCtrl"> <button ng-click="updateCounter()">Increment count</button> <input type="text" ng-model="inputfield"> <input type="button" value="Continue" ng-disabled="{{inputfield !== startertext}}"> <br>startertext: {{startertext}} <br>nputfield: {{inputfield}} <br>test: {{inputfield !== startertext}} </body> </html>And the Javascript file is below.
var app = angular.module('plunker', []); app.controller('MainCtrl', function($scope) { $scope.startertext = 'hello world'; }); -
Simon McClive almost 10 yearsFeel like an idiot, been tinkering with this for a while and actually added them in. Working flawlessly!