问题描述
我正在尝试使用ng-repeat实现单选按钮列表. typeList.html
i am trying to implement radio-button list using ng-repeat.typeList.html
<div ng-repeat="type in types" >
<input type="radio" id={{type.id}} name="{{type.name}}" ng-model="result" ng-value="type.id" >
{{type.name}}
<div> Result {{result}} </div> //result is changing only in the row of clicked radio-button. It should change in every row.(two way data-binding).
</div>
指令:
angular.module('app').directive('myList',function(){
return{
restrict: 'A',
scope: {
types: '=', //here list is passed to be printed with ng-repeat
result: '=' //here I want to store which radio-button was selected last time by id
},
templateUrl: 'html/typeList.html'
};
});
指令具有隔离范围.我要传递两个参数.单选按钮和要在父范围中存储答案(id-上次单击单选按钮)的结果对象要打印的列表.不幸的是,每当我单击单选按钮时,结果只会在本地更改.
Directive has isolated scope. I am passing two parameters. List to be printed with radio buttons and result object which stores answer(id-what radio button was clicked last time) in parent scope. Unfortunately whenever i click on radio-buttons my result is changing only locally.
Passing parameters to my directive.
<div my-list types="list" result="selected"></div>
Passed list and result paramater from controller to myList directive.
$scope.list = [
{ id: 1, name:'Name 1' },
{ id: 2, name:'Name 2' },
{ id: 3, name:'Name 3' }
];
$scope.selected = -1;
我将不胜感激.
推荐答案
您必须将非原始对象传递给模型,以获取两战绑定的参考.只需将selected
包装到一个对象中以供参考.
You have to pass a non-primitive object to the model to get its reference for two-war binding. Just wrap selected
into an object for its reference.
在您的控制器中使用.
$scope.list = [{
id: 1,
name: 'Name 1'
}, {
id: 2,
name: 'Name 2'
}, {
id: 3,
name: 'Name 3'
}];
$scope.ctrlModel = {
selected: -1
}
在'html/typeList.html'
<div ng-repeat="type in types" >
<input type="radio" id={{type.id}} ng-model="result.selected" ng-value="type.id" >
{{type.name}}
</div>
Result {{result.selected}}
工作小提琴演示
希望有帮助.
这篇关于AngularJS双向数据绑定在指令中无法正常工作的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!