我遇到了ng-options的问题,我很难跟踪。我在select控件中使用带有ng-options的字符串数组。它似乎正确跟踪,但默认月份名称不会在页面加载下拉列表中显示为选定值。我已经创建了以下jsfiddle来说明问题:https://jsfiddle.net/risingfish/ktocfrhn/13/
使用Javascript:
var myApp = angular.module('momentTest', []);
myApp.controller('main', function ($scope) {
$scope.months = moment.months();
$scope.currentMonth = 7;
});
myApp.run();
标记:
<div ng-app="momentTest" ng-controller="main">
<div>
<select name="monthPicker" ng-model="currentMonth" ng-options="idx as month for (idx, month) in months">
</select>
</div>
<div>
Current month: <span ng-bind="currentMonth"></span>
</div>
</div>
我很确定它的操作员错误,但我没有太多关于答案的谷歌搜索。有谁有想法?
答案 0 :(得分:2)
&#34;问题&#34;是idx
实际上是string
(您可以在value
option
标记的string
中的生成HTML中看到它。
然后,为了使其工作,您只需将默认设置为$scope.currentMonth = '7';
:
0000000000000020 r A.15.3480
0000000000000000 r A.3.3436
0000000000000010 r A.9.3463
U _gfortran_reshape_r8
00000000000fbe28 C commondata_
U free
U malloc
0000000000000000 T solveeq_
分叉DEMO
。
答案 1 :(得分:0)
您可以使用以下解决方案
解决方案1
你的html文件中的
<div ng-app="momentTest" ng-controller="main">
<div>
<select name="monthPicker" ng-model="currentMonth" ng-options="month for month in months" > </select>
</div>
<div>
$scope.months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August','September','October','November','December'];
$scope.currentMonth = $scope.months[0];
解决方案2
你的html文件中的
<div ng-app="momentTest" ng-controller="main">
<select name="monthPicker" ng-model="currentMonth" ng-options="idx as month for (idx,month) in months" ng-init="currentMonth='0'"> </select>
</div>
$scope.months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August','September','October','November','December'];