Angularjs Multiple Select: Cannot read property 'length' of undefined

Question

I have tried many variations but nothing seem to work.

I am getting the following error:

TypeError: Cannot read property 'length' of undefined
at select.js:1560
at m.$broadcast (angular.js:18487)
at Object.ctrl.select (select.js:673)
at fn (eval at compile (angular.js:15358), <anonymous>:4:453)
at e (angular.js:26994)
at b.$eval (angular.js:18161)
at b.$apply (angular.js:18261)
at HTMLDivElement.<anonymous> (angular.js:26999)
at HTMLDivElement.dispatch (jquery-3.2.1.min.js:3)
at HTMLDivElement.q.handle (jquery-3.2.1.min.js:3)

My code in the HTML part is:

<label for="addRecipient" class="bold">Additional Recipients:</label>
<ui-select multiple ng-model="addRecipient.selection" theme="bootstrap" title="Choose Recipients" class="multipleSelect">
<ui-select-match placeholder="Select Additional Recipients...">{{$item.name}}</ui-select-match>
<ui-select-choices repeat="additional in addRecipients | filter:$select.search">
 {{additional.name}}
</ui-select-choices>
</ui-select>

And in my controller:

$scope.addRecipient = {}; 
$scope.addRecipients =  [];
$.each(success.data.d.results, function (ind, val) {
  $scope.addRecipients.push({'name': val.Title, 'email':val.Email});
});

I can see the options to select in my select, however every time I click in any option, I get that error. Here is the dropdown showing the info from success.data.d.results:

dropdown

That isnt your full controller, my assumption is success.data.d.results is empty thus your $.each is not iteratiing — gh9, Jan 02 '18 at 14:21
The array has values. I am getting the results on the dropdown. I will add an image in my post. — lumayara, Jan 02 '18 at 14:33
Everything works now. And I am glad we found out how to solve this type of problem. — lumayara, Mar 27 '18 at 16:44

score 3 · Accepted Answer · answered Jan 19 '18 at 16:01

This is how my code looks now and it is working. Thank you @NTP for the hint!

<label for="addRecipient" class="bold">Additional Recipients:</label>
<ui-select multiple ng-model="addRecipient.selected" theme="bootstrap" title="Choose Recipients" class="multipleSelect">
   <ui-select-match placeholder="Select Additional Recipients...">{{$item.Title}}</ui-select-match>
   <ui-select-choices repeat="additional in addRecipients | filter:$select.search">
       {{additional.Title}}
</ui-select-choices>

In the controller:

$scope.addRecipient = {}; 
$scope.addRecipients = [];

Dropdown values:

$scope.addRecipients = success.data.d.results;

Getting selected values:

//add Recipient
var addRecipients;
if ($scope.addRecipient.selected && $scope.addRecipient.selected !='undefined'){
     things = [];
     console.log($scope.addRecipient.selected);
     for (var key in $scope.addRecipient.selected) {
          if (key < $scope.addRecipient.selected.length) {
                 things.push($scope.addRecipient.selected[key].Email) ;
          }
      }
      addRecipients = things;
 }

score 1 · Answer 2 · answered Nov 08 '19 at 06:32

1

I received the error when the data in dropdownList was empty. Once you initialize value in dropdownList it works just fine. this.dropdownList=[];

answered Nov 08 '19 at 06:32

Priyanka Arora

409
4
10

score 0 · Answer 3 · answered Jan 02 '18 at 15:23

0

You should initialize your selection array,

$scope.addRecipient = {}; 
$scope.addRecipient.selection = [];

answered Jan 02 '18 at 15:23

NTP

4,338
3
16
24

Thank you! Thanks to your answer I was able to figure it out. It didn't work putting $scope.addRecipient = {}; but when I changed it to an array it worked. Your solution didn't work when I tried but it was what led me to get it working. Thank you! – lumayara Jan 19 '18 at 15:53
I am glad I was able to help. – NTP Jan 19 '18 at 16:02
I appreciate it! I was getting crazy with that. – lumayara Feb 09 '18 at 15:02

Angularjs Multiple Select: Cannot read property 'length' of undefined

3 Answers3