我会将ng-selected 与ng-click 结合起来尝试实现这一目标。 ng-click(Angular 本身固有)的问题在于,虽然它确实刷新了你的整个列表,但它并没有刷新已经选择的项目。我建议你改变你的设计。您可以做的一件事是使用例如国家名称的前 3 个字母或类似的组合。将以下代码放入您的小提琴中以查看示例:
HTML
<div ng-controller="Ctrl">
<select ng-model="country" ng-options="c.phoneNumberCountryCode as (c.countryName + ' (+' + c.phoneNumberCountryCode + ')' ) for c in countriesList" ng-selected="onCodeSelected(country)" ng-click="onClick()">
</select>
</div>
JS
var app = angular.module('app', []);
function Ctrl($scope) {
//this should be in a service
$scope.countriesList = [{
id: 0,
countryName: 'Portugal',
phoneNumberCountryCode: '351'
}, {
id: 1,
countryName: 'Spain',
phoneNumberCountryCode: '34'
}, {
id: 2,
countryName: 'UK',
phoneNumberCountryCode: '44'
}, {
id: 3,
countryName: 'Australia',
phoneNumberCountryCode: '61'
}];
$scope.onClick = function () {
//refresh data from service instead of hardcoded like below
$scope.countriesList[0].countryName = "Portugal";
$scope.countriesList[1].countryName = "Spain";
$scope.countriesList[2].countryName = "UK";
$scope.countriesList[3].countryName = "Australia";
}
$scope.onCodeSelected = function(countryCode) {
if (countryCode) {
angular.forEach($scope.countriesList, function(value, key) {
if (value.phoneNumberCountryCode === countryCode) {
var countryShort = $scope.countriesList[value.id].countryName.substring(0, 3);
$scope.countriesList[value.id].countryName = countryShort;
}
})
}
}
}