使用相同的控制器在两个div之间共享数据

Atu*_*rma 3 angularjs angularjs-directive angularjs-scope

我有两个div与相同的控制器,两个div几乎相同的数据显示.两个div都有一个更新对象的按钮.但是当一个div的按钮更新对象时它不会反映在第二个div上.

<body ng-app="myapp">
  <div ng-controller="ctrl1">
    {{list.greet}}
    <button ng-click="add('hi')">add</button>
  </div>
  <div ng-controller="ctrl1">
    {{list.greet}}
    <button ng-click="add1('hello')">add</button>
  </div>
</body>
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脚本

var app=angular.module('myapp',[])
.controller('ctrl1',function($scope){
  $scope.list={
    greet:'hola'
  }
  $scope.add=function(data){
    $scope.list.greet=data
  }
   $scope.add1=function(data){
    $scope.list.greet=data
  }
})
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Wil*_*ith 5

这两个div都有一个ng-controller属性.这意味着每个div都有自己的控制器实例.尝试将ng-controller添加到公共父元素

<body ng-app="myapp" ng-controller="ctrl1">
  <div>
    {{list.greet}}
    <button ng-click="add('hi')">add</button>
  </div>
  <div>
    {{list.greet}}
    <button ng-click="add1('hello')">add</button>
  </div>
</body>
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DTi*_*ing 5

您可以使用服务在控制器和同一控制器的不同实例之间共享数据:

var app = angular.module('myapp', [])
  .controller('ctrl1', function($scope, myService) {
    $scope.a = myService.list;
    $scope.add = function(data) {
      $scope.a.greet.push(data);
    }
  })
  .service('myService', function() {
    this.list = {greet: []};
  });
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<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>

<body ng-app="myapp">
  <div ng-controller="ctrl1">
    Ctrl1: <br>
    {{a.greet}}
    <button ng-click="add('c1a')">add</button>
  </div>
  <div ng-controller="ctrl1">
    Ctrl1: <br>
    {{a.greet}}
    <button ng-click="add('c1b')">add</button>
  </div>
</body>
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