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How to Dynamically Update Page

Susan Sarandon
Susan SarandonOriginal
2024-10-30 12:30:03497browse

How to Dynamically Update Page

Dynamically Modifying Headers in AngularJS Partial Views

When leveraging AngularJS to dynamically load partial views, it becomes imperative to update the page title and header tags accordingly. However, these elements typically fall outside the scope of the partial view controllers, posing a challenge to data binding.

A Refined Approach

The following JavaScript code employs the ng-bind attribute to seamlessly set the page title based on the current route:

<code class="js">var myApp = angular.module('myApp', ['ngResource']);

myApp.config(['$routeProvider', function($routeProvider) {
    // Define routes with titles
    $routeProvider.when('/test1', {title: 'Test 1', templateUrl: 'test1.html', controller: Test1Ctrl});
    $routeProvider.when('/test2', {title: 'Test 2', templateUrl: 'test2.html', controller: Test2Ctrl});
}]);

myApp.run(['$rootScope', function($rootScope) {
    // Update title on route change
    $rootScope.$on('$routeChangeSuccess', function(event, current, previous) {
        $rootScope.title = current.$$route.title;
    });
}]);</code>

In the HTML template, the ng-bind attribute binds the title to the $rootScope.title variable:

<code class="html"><head>
    <title ng-bind="'myApp &amp;mdash; ' + title">myApp</title>
</head></code>

Conclusion

This refined approach provides a simple and effective way to dynamically update headers based on the active partial view in AngularJS applications, ensuring consistency and user comprehension as they navigate the application.

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