Customizing the option template of an Angular select element

I have a dropdown menu that displays a list of objects and a button to show the selected object's data. It's functioning properly.

The issue I'm facing is that I want to display more than just the object name in the dropdown menu. When I tried adding additional data, it returned a string instead of a JSON object:

<select ng-model="selected">
    <option ng-repeat="item in items" value="{{item}}">
          {{item.name}} <span>Some nice data</span>
    </option>
</select>

How can I accomplish this? Do I need to create a directive for it?

Here is my code which currently works without additional data in the select box

var app = angular.module('app', []);


app.controller('Test', function($scope) {

  $scope.selected = null;
  $scope.items = [{
    name: 'a',
    value: 1,
    something: "xyz"
  }, {
    name: 'b',
    value: 2,
    something: "xyz"
  }, {
    name: 'c',
    value: 3,
    something: "xyz"
  }]


  $scope.show = function() {
    alert("selected " + $scope.selected.name + ' with value ' + $scope.selected.value);
  }

});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<html ng-app="app">

<body>
  <div ng-controller="Test">
    <select data-ng-options="i.name for i in items" ng-model="selected">
    </select>
    <button ng-click="show()">press</button>
  </div>
</body>

</html>

Answer №1

When using the AngularJS directive ngOptions, it is not possible to directly output HTML. However, you can customize the option content by utilizing a function to label the elements. Here's an example demonstrating this approach (please note that the HTML is escaped):

var app = angular.module('app', []);


app.controller('Test', function($scope) {

  $scope.selected = null;
  $scope.items = [{
    name: 'a',
    value: 1,
    something: "xyz"
  }, {
    name: 'b',
    value: 2,
    something: "xyz"
  }, {
    name: 'c',
    value: 3,
    something: "xyz"
  }]


  $scope.show = function() {
    alert("selected " + $scope.selected.name + ' with value ' + $scope.selected.value);
  }

  $scope.format = function(i) {
    return i.name + '<span>Some nice data</span>';
  };
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<html ng-app="app">

<body>
  <div ng-controller="Test">
    <select data-ng-options="i as format(i) for i in items" ng-model="selected">
    </select>
    <button ng-click="show()">press</button>
  </div>
</body>

</html>

Answer №2

Placing HTML within an option tag in a select element is considered invalid practice. It is recommended to create your custom dropdown using DIV tags or other suitable elements based on your requirements. Additionally, it might be beneficial to reconsider your user interface design, keeping in mind that the primary function of a dropdown menu is not for navigating through data.

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