``To utilize the ng-class variable within a controller, one can simply assign the desired

How can I change the color of a div to green using AngularJs when a file is selected?

html

<div class="text-arrow" ng-class="{activeBackground:applyActive}">File Selection<span class="arrow-div"></span></div>
  

css

.activeBackground{
       background-color: green;
    }
  

script.js

$scope.onSelect = function (e) {
      $scope.applyActive = true;
  }
  

Answer №1

Check out this live demo showcasing the desired functionality.

 <div ng-class="{ activeBackground: applyActive }">File Selection</div>
 <button ng-click="toggleBackground()">Toggle background</button>

Some potential issues in your current implementation:

  • Your CSS might be conflicting with setting the background
  • The onSelect method may not be called correctly

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