我正在使用angular
迭代集合并使用自定义指令创建多个radio
按钮。我想在单击的\ checked \ selected radio
按钮中添加某个类。如何将$index
和数据对象一起传递给directive
?
这是指令:
app.directive("customDirective", function () {
return {
restrict: "E",
templateUrl: "views/customDirective.html",
scope: {
choice: "="
}
}
});
此代码将数据对象传递给指令:
<div class="row" ng-repeat="choice in questionObj.choices">
<custom-directive choice="choice"></custom-directive>
</div>
这是指令模板的内容:
<div class="radio">
<label ng-class="{choiceSelected: isChecked == $index}"><input type="radio" name="optradio" ng-model="isChecked" value="$index">{{choice.description}}</label>
</div>
答案 0 :(得分:0)
除非必须,否则我会避免在无线电和复选框周围使用该指令,因为角度处理范围与这些对象和ng-repeat的方式。如果您删除该指令并将该html放入ng-repeat中,则其工作方式如下: HTML:
<div class="row" ng-repeat="choice in questionObj.choices">
<div class="radio">
<label ng-class="{choiceSelected: selected == choice.description}">
<input type="radio" name="{{choice.description}}" ng-model="$parent.selected" ng-value="choice.description">
{{choice.description}}
</label>
</div>
控制器:
.controller('testData', ['$scope',
function ($scope) {
$scope.selected = {};
$scope.questionObj = {
choices:[{description: 'first'},{description:'second'},{description:'third'}]
};
}])
CSS:
.choiceSelected{
color:red;
}
这是一个有效的插件:https://plnkr.co/edit/JL9WOkYjRyoTLi5E7ExF?p=preview
另请注意,在ng-repeat中,收音机的ng-model是$ parent.selected。这是因为ng-repeat导致内部html成为原始范围的子项。