Question

我一直在看这个问题太久了，无法弄清楚为什么这些选项没有显示出来。使用1.2.26

{{students}}
<select name="student" ng-options="i.id as i.first_name for i in students"></select>

因此，这会输出一个选择但没有选项。学生已填充并显示为

[{"first_name":"Student","last_name":"Seven","email":"","order":"0","id":11,"rLevel":2},{"first_name":"Student","last_name":"Eight","email":"","order":"6","id":12,"rLevel":2},{"first_name":"Student","last_name":"Six","email":"","order":"2","id":10,"rLevel":2},{"first_name":"Studen","last_name":"Four","email":"","order":"1","id":8,"rLevel":2}]

我知道角度已初始化，学生是一组对象。这个循环恰好在选择输出和功能之下。

    <li ng-repeat="student in students">
      <a href="#" ng-click="addStudent(student.id)">{{student.first_name}} {{student.last_name}}</a> <span ng-show="student.id == class.current_student.id"></span>
    </li>

Answer 1

您的选择中没有ng-model属性。 ng-options仅适用于ng-model，否则无法绑定。

另外，我刚刚注意到select指令源的line 388。这取决于ngModelController render功能，以实际填充DOM中的选项。

Angular ng-option不创建任何选项

1 个答案: