如何访问指令范围内的 ng-repeat 项? [英] How do you access an ng-repeat item in a directive's scope?

问题描述

你如何为这样的东西设置范围值:

<my-element ng-repeat="p in people" person='p'></my-element>

var myApp = angular.module('myApp',[]);myApp.directive('myElement', function(){返回 {限制:'E'，模板:'<div>{{名称}}</div><div>{{ age }}</div>'}});函数 MyCtrl($scope) {$scope.people = [{ name: 'Mike', age: 20 },{name: 'Peter', age: 22 }];}

解决方案

如果设置范围值"是指让模板工作，那么

template: '
{{ p.name }}
<div>{{页面}}</div>'

由于 ng-repeat 的每次迭代都会创建一个新的子作用域，因此在该作用域上定义了 p.由于您的指令没有创建隔离范围，因此您不需要属性 person，因此这适用于上述内容:

<my-element ng-repeat="p in people"></my-element>

如果你想要一个隔离范围，使用

<my-element ng-repeat="p in people" person='p'></my-element>

和

return {限制:'E'，范围: {人:'='},模板:'<div>{{person.name}}</div><div>{{person.age }}</div>'}

How do you set the scope value for something like this:

<div ng-controller="MyCtrl">
      <my-element ng-repeat="p in people" person='p'></my-element>
</div>

var myApp = angular.module('myApp',[]);

myApp.directive('myElement', function(){
    return {
        restrict: 'E',
        template: '<div>{{ name }}</div> <div>{{ age }}</div>'
    }
});

function MyCtrl($scope) {
    $scope.people = [{ name: 'Mike', age: 20 },{name: 'Peter', age: 22 }];
}

解决方案

If by "set the scope value" you mean have the template work, then

template: '<div>{{ p.name }}</div> <div>{{ p.age }}</div>'

Since each iteration of ng-repeat creates a new child scope, p is defined on that scope. Since your directive is not creating an isolate scope, you don't need attribute person, so this works with the above:

<my-element ng-repeat="p in people"></my-element>

If you want an isolate scope, use

<my-element ng-repeat="p in people" person='p'></my-element>

and

return {
   restrict: 'E',
   scope: {
       person: '='
   },
   template: '<div>{{ person.name }}</div> <div>{{ person.age }}</div>'
}

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