在ng-change中访问ng-options变量

Question

Seemingly simple issue here. I have an ng-options select tag that's working funky.

Basically my ng-change function does not work properly, as the first parameter, "v", is undefined. Any help?

<select ng-model="d.sub_customer" ng ng-options="v.description as v.description for v in subCustomers" ng-change="updateCustomer(v,d.id)"></select>

Answer 1

You cannot access the iteration variable in ng-options expression outside (unlike ng-repeat ). Because ng-options just uses that expression and draws the options for the select in DOM. It really does not create a scope to keep hold off these properties, which is why it is unlike ng-repeat. In your case d.sub_customer will be the selected v.description ,so you could just pass in that in the ng-change, ie

  ng-change="updateCustomer(d.description,d.id)"

Answer 2

<select ng-model="d.sub_customer" ng ng-options="v.description as v.description for v in subCustomers" ng-change="updateCustomer(v,d.sub_customer)"></select>