AngularJS – 在指令范围内设置变量

我正在尝试在$scope上设置一个变量selected.child,以便我可以在其他地方使用它.我仍然是Angular中范围的新手,但不确定为什么我不能在指令范围内设置范围.我可以调用范围函数.

我有一个JSfiddle,代码发布在下面.

我在这里先向您的帮助表示感谢.

HTML：

<div ng-controller="DashCtrl">
     <h3>{{selected.child}}<h3>

   <div ng-repeat="child in children" select={{child}}>
      {{child.username}}
    </div>
</div>

javascript：

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

dash.directive('select',function () {
  return {
    restrict: "A",scope: false,link: function (scope,element,attrs) {
      element.bind('click',function () {
        scope.selected.child = jQuery.parseJSON(attrs.select); //Neither this
        scope.setSelected(jQuery.parseJSON(attrs.select));  //Nor this is working

          if (attrs.select != scope.selected) {
            other_elements = angular.element(document.querySelectorAll('[select]'));
                for (var i = 0; i < other_elements.length; i++) {
                    elm = jQuery(other_elements[i]);
                    elm.css('background','none');
                }
                element.css('background','#F3E2A9');
          }
      });
    }
  };
});

dash.controller('DashCtrl',function ($scope) {
  $scope.setSelected = function (child) {
    $scope.selected.child = child;
  };

  $scope.children = [{
    "age_group": "6-8","username": "my_child"
  },{
    "age_group": "8-10","username": "another_child"
  }];

  $scope.selected = {
    child: "none"
  };


});

您错过了对$apply的调用
只需修改您的代码,如下所示

scope.selected.child = jQuery.parseJSON(attrs.select); //Neither this
            //    scope.setSelected(jQuery.parseJSON(attrs.select)); //Nor this is working
scope.$apply();

原文链接：https://www.f2er.com/angularjs/140263.html

AngularJS – 在指令范围内设置变量

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