角度 ng-disable 复选框不随动态源更新

Question

我有几个从数组源动态生成的复选框：

        /*js*/
        $scope.arrondissements =   JSON.parse('
    [{"name":"4e","checked":false,"disable":true},  
    {"name":"5e","checked":false,"disable":false},  
    {"name":"11e","checked":false,"disable":false},  
    {"name":"12e","checked":false,"disable":false},  
    {"name":"13e","checked":false,"disable":false},  
    {"name":"14e","checked":false,"disable":false},  
    {"name":"15e","checked":false,"disable":false},  
    {"name":"16e","checked":false,"disable":false},  
    {"name":"17e","checked":false,"disable":false},  
    {"name":"18e","checked":false,"disable":false},  
    {"name":"19e","checked":false,"disable":false},  
    {"name":"20e","checked":false,"disable":false}]');


        <!-- HTML -->
        <div ng-repeat="item  in arrondissements" class="checkbox-inline ">
             <label>
             <input type="checkbox" ng-disabled="{{item.disable == true}}"
                      value="{{item.checked}}" ng-model="item.checked" >
              <span>{{item.name}}</span>
             </label>
        </div>

复选框已正确生成，但当源更新时，复选框不会更新

/*js*/
$scope.disableCb = function () {
      $scope.arrondissements[5].disable = true;
      $scope.arrondissements[6].disable = true;
      $scope.arrondissements[7].disable = true;
}

<!-- HTML -->
<button ng-click="disableCb()">disable</button>  

你能告诉我为什么以及如何解决它吗？

我做了一个 Plunker：http://plnkr.co/edit/jD1l3NgJuduTOoskpeVM

Answer 1

你应该在你的控制器函数中定义你的 $scope.disableCb 函数。

function controller( $scope) {
    var vm = $scope;

     $scope.title = 'controller';

$scope.arrondissements =   JSON.parse('[{"name":"4e","checked":true,"disable":true},{"name":"5e","checked":false,"disable":false},{"name":"11e","checked":false,"disable":false},{"name":"12e","checked":false,"disable":false},{"name":"13e","checked":false,"disable":false},{"name":"14e","checked":false,"disable":false},{"name":"15e","checked":false,"disable":false},{"name":"16e","checked":false,"disable":false},{"name":"17e","checked":false,"disable":false},{"name":"18e","checked":false,"disable":false},{"name":"19e","checked":false,"disable":false},{"name":"20e","checked":false,"disable":false}]');

$scope.disableCb = function () {

         $scope.arrondissements[5].disable = true;
         $scope.arrondissements[6].disable = true;
         $scope.arrondissements[7].disable = true;
      }

    }

我还修正了您使用指令的方式。我已经删除了复选框上的value 属性，因为它们与ng-model 是多余的。 我也修复了你对 ng-disabled 的使用问题

 <div ng-repeat="item  in arrondissements" class="checkbox-inline ">
                    <label>
                        <input type="checkbox" ng-disabled="item.disable"
                                ng-model="item.checked" >
                        <span>{{item.name}}</span>
                    </label>
                </div>

              <button ng-click="disableCb()">disable</button>  

在你的 plunker 上查看我的叉子：http://plnkr.co/edit/v1fwlf7QH0189WAhv6qM?p=preview