Question

我有一个Business下拉列表，其中包含一个对象列表。我想要做的就是当我加载页面时，我预先选择了来自我服务的数据。

让我们详细了解

选择选项的

json对象数组

[{"code":"MA","value":"Main"},{"code":"TL","value":"Toll Free"},{"code":"AP","value":"After Hour"},{"code":"FX","value":"Fax"},{"code":"DR","value":"Direct"},{"code":"WB","value":"Web"},{"code":"EM","value":"Email"}]

选择选项的代码

<select id="selectOption" ng-model="company.business" ng-options="option as 
option.value for option in businessDropdownValues" class="form-control form- 
control-sm input-sm"> </select>

如果收到company.business作为从上面提供的列表中收到的对象之一，请告诉我如何获得预先选择的选项？

由于

Answer 1

你也可以这样做：

<select id="selectOption" ng-model="company.business" ng-options=" 
option.value for option in businessDropdownValues track by option.id" class="form-control form- 
control-sm input-sm"> </select>

Answer 2

你必须这样使用。

 <select id="selectOption" ng-model="company.business" ng-options="option.value for option in businessDropdownValues track by option.code" class="form-control form- 
control-sm input-sm"> </select>

如何在ng-options中进行预选

2 个答案: