ng-当模型是对象时不选择`<select>`的模型

Question

如何设置表单字段的ng模型值？ng模型值未反映在我的表单上

我有一个$scope.obj，这个对象来自服务器，当我尝试在像ng-model="obj.name"这样的表单中申请时，它不会反映在<select>字段中。如何解决这个问题？

<select class="form-control" ng-model="empEdit.qualification"
         ng-options="qualification as qualification.qualificationName
                     for qualification in qualifications"
         name="qualification"> 
  <option value="" selected disabled hidden>
    Choose your qualification
  </option>
</select>

控制器：

$scope.empEdit = {
    "name":"SomeName",
    "id": 2,
    qualification: {"id":1,"qualification_name: "BS"}
};

Answer 1

ng-model指令比较对象引用而不是对象内容。对ng-model值使用基元属性：

<select class="form-control" ng-model="empEdit.qualById"
        ng-options="q.id as q.qualificationName for q in qualifications"
        name="selQual1"> 
  <option value="" disabled>
    Choose your qualification
  </option>
</select>

 $scope.empEdit = {"name":"SomeName", "id": 2, qualById: 1};

有关详细信息，请参阅

• why does Javascript comparison not work with objects?
• AngularJS ng-options Directive API Reference - select as