Selection dropdown not being populated by ng-options

Question

Selection dropdown not being populated by ng-options

After trying numerous examples to implement the changes, I am still facing issues. Even though I have an ng-model and clearly defined the object property I want to receive, it is not functioning as expected. Any assistance would be appreciated.

Here is the relevant code snippet:

<select chose ng-model="selected" ng-options="type as type.Name for type in ansExplanOpt">
     <option value="">-- Select an Option --</option>
</select>

In the controller:

$scope.selected = ansExplanOpt.data;

The object contains properties such as Name and Id, and it is populating correctly. However, the functionality is not as desired. Any guidance on resolving this issue would be highly appreciated. Thank you.

javascript angularjs

Answer 1

Answer №1

It appears that there was a slight error with the ng-model value in your code. You should consider modifying it to something like this:

<select chosen ng-model="selectedValue" ng-options="type.Id as type.Name for type in ansExplanOpt">
</select>

The ng-model will then capture the user's selection.

If you need further clarification, their documentation provides a comprehensive breakdown:https://docs.angularjs.org/api/ng/directive/ngOptions

Answer 2

It appears that there was a slight error with the ng-model value in your code. You should consider modifying it to something like this:

<select chosen ng-model="selectedValue" ng-options="type.Id as type.Name for type in ansExplanOpt">
</select>

The ng-model will then capture the user's selection.

If you need further clarification, their documentation provides a comprehensive breakdown:https://docs.angularjs.org/api/ng/directive/ngOptions

Answer 3

Answer №2

Presented below is the solution:

ng-model represents the value chosen by the user.

function TodoCtrl($scope) {
  $scope.ansExplanOpt = [
    {text:'learn angular', id:1},
    {text:'build an angular app', id:2}];
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.8/angular.min.js"></script>
<div ng-app>
  <div ng-controller="TodoCtrl">
<select chose ng-model="select" ng-options="type as type.text for type in ansExplanOpt">
     <option value="">-- Select an Option --</option>
</select>
{{select.text}}
  <br>
    {{select}}
  </div>
</div>

Answer 4

Presented below is the solution:

ng-model represents the value chosen by the user.

function TodoCtrl($scope) {
  $scope.ansExplanOpt = [
    {text:'learn angular', id:1},
    {text:'build an angular app', id:2}];
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.8/angular.min.js"></script>
<div ng-app>
  <div ng-controller="TodoCtrl">
<select chose ng-model="select" ng-options="type as type.text for type in ansExplanOpt">
     <option value="">-- Select an Option --</option>
</select>
{{select.text}}
  <br>
    {{select}}
  </div>
</div>

Answer 5

Answer №3

To specify the preselected element in the array, you can do the following:

var myApp = angular.module('myApp', [])
 .controller('TestController', ['$scope', function($scope) {
  $scope.data = [{
    label: 'blah',
    value: 'blah'
  }, {
    label: 'blah1',
    value: 'blah1'
  }, {
    label: 'blah2',
    value: 'blah2'
  }];
  $scope.sel = $scope.data[0];

}]);

html:

<div ng-controller="TestController">
  {{sel}}
  <select ng-model="sel.value" ng-options="d.value as d.label for d in data">
  </select>
</div>

View more details on this jsfiddle link

Answer 6

To specify the preselected element in the array, you can do the following:

var myApp = angular.module('myApp', [])
 .controller('TestController', ['$scope', function($scope) {
  $scope.data = [{
    label: 'blah',
    value: 'blah'
  }, {
    label: 'blah1',
    value: 'blah1'
  }, {
    label: 'blah2',
    value: 'blah2'
  }];
  $scope.sel = $scope.data[0];

}]);

html:

<div ng-controller="TestController">
  {{sel}}
  <select ng-model="sel.value" ng-options="d.value as d.label for d in data">
  </select>
</div>

View more details on this jsfiddle link

Selection dropdown not being populated by ng-options

Answer №1

Answer №2

Answer №3

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