javascript tutorial - [Solved-5 Solutions] Insert HTML into view - javascript - java script - javascript array
Problem:
Is it possible to create an HTML fragment in an AngularJS controller and have this HTML shown in the view ?
This comes from a requirement to turn an inconsistent JSON blob into a nested list of id : valuepairs. Therefore the HTML is created in the controller and now we looking to display it. We have created a model property, but cannot render this in the view without it just printing the HTML.
Update
It appears that the problem arises from angular rendering the created HTML as a string within quotes. Will attempt to find a way around this.
Example controller :
var SomeController = function () {
this.customHtml = '<ul><li>render me please</li></ul>';
}
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Example view :
<div ng:bind="customHtml"></div>
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Gives :
<div>
"<ul><li>render me please</li></ul>"
</div>
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Solution 1:
For Angular 1.x, use ng-bind-html in the HTML:
<div ng-bind-html="thisCanBeusedInsideNgBindHtml"></div>
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At this point we would get a attempting to use an unsafe value in a safe context error so we need to either use ngSanitize or $sce to resolve that. $sce Use $sce.trustAsHtml() in the controller to convert the html string.
$scope.thisCanBeusedInsideNgBindHtml = $sce.trustAsHtml(someHtmlVar);
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ngSanitize
There are 2 steps:
- Include the angular-sanitize.min.js resource, i.e.:
- <script> src="lib/angular/angular-sanitize.min.js"></script>
- In a js file (controller or usually app.js), include ngSanitize, i.e.:
- angular.module('myApp', ['myApp.filters', 'myApp.services', 'myApp.directives', 'ngSanitize'])
Solution 2:
We can also create a filter like so:
var app = angular.module("demoApp", ['ngResource']);
app.filter("trust", ['$sce', function($sce) {
return function(htmlCode){
return $sce.trustAsHtml(htmlCode);
}
}]);
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Then in the view
<div ng-bind-html="trusted_html_variable | trust"></div>
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Solution 3:
The solution provided in the above link worked for me, none of the options on this thread did. For anyone looking for the same thing with AngularJS version 1.2.9 Here's a copy: Ok we found solution for this: JS:
$scope.renderHtml = function(html_code)
{
return $sce.trustAsHtml(html_code);
};
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HTML:
<p ng-bind-html="renderHtml(value.button)"></p>
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EDIT: Here's the set up: JS file:
angular.module('MyModule').controller('MyController', ['$scope', '$http', '$sce',
function ($scope, $http, $sce) {
$scope.renderHtml = function (htmlCode) {
return $sce.trustAsHtml(htmlCode);
};
$scope.body = '<div style="width:200px; height:200px; border:1px solid blue;"></div>';
}]);
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HTML file:
<div ng-controller="MyController">
<div ng-bind-html="renderHtml(body)"></div>
</div>
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Solution 4:
Fortunately, we don't need any fancy filters or unsafe methods to avoid that error message. This is the complete implementation to properly output HTML markup in a view in the intended and safe way. The sanitize module must be included after Angular:
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.26/angular.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.26/angular-sanitize.js"></script>
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Then, the module must be loaded:
angular.module('app', [
'ngSanitize'
]);
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This will allow we to include markup in a string from a controller, directive, etc:
scope.message = "<strong>42</strong> is the <em>answer</em>.";
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Finally, in a template, it must be output like so:
<p ng-bind-html="message"></p>
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Solution 5:
We have tried today, the only way we found was this
<div ng-bind-html-unsafe="expression"></div>