呼叫控制器的功能来自Directive AngularJS

时间:2014-08-07 07:07:38

标签: javascript angularjs jquery-ui

如何在下面的代码中调用指令中的controllers方法:

app.controller("main",['$scope','$http',function($scope,$http){
$scope.SelectCollege = function (){
     //Code to search college
}
}]);

指令

    angular.module('angucomplete', [] )
        .directive('angucomplete', function ($parse, $http, $sce, $timeout) {

   link: function($scope, elem, attrs) {
                $("#search_value").autocomplete({
                        source: $scope.localData,
                        select: function( event, ui ) {

                            //How to call controller's method here

                        }
                    });
            }
 });

3 个答案:

答案 0 :(得分:1)

假设指令放在控制器范围内(带有ng-controller的元素)

select: function( event, ui ) {

   //How to call controller's method here
   //Answer: as shown below
   $scope.SelectCollege();

}

答案 1 :(得分:1)

您可以在控制器中包含指令属性

控制器选项采用字符串或函数。设置为字符串时,字符串的名称为 用于查找在我们的应用程序中其他位置注册的控制器构造函数:

angular.module('myApp', [])
   .directive('myDirective', function() {
   restrict: 'A', // always required
   controller: 'SomeController',
   link: function(scope, element, attrs, SomeController) {
         SomeController.doSomething(scope);
  },
})
   // elsewhere in our application
   // either in the same file or another
   // one included by our index.html
angular.module('myApp')
  .controller('SomeController', function($scope, $element, $attrs, $transclude) {
      // controller logic goes here
})

答案 2 :(得分:-1)

您可以将控制器的方法传递给指令的范围,如下所示:

<autocomplete on-select="SelectCollege()"></autocomplete>

在你的指令中定义你的范围

scope: {
    onSelect: "&onSelect"
}

然后在你的指令中,你只需将其称为:

 $scope.onSelect()

或者,如果您的指令位于控制器范围内,则可以在指令中使用$scope.SelectCollege() 您的指令不会声明自己的范围,而是继承自控制器范围。例如:

<div ng-controller="main">
    <autocomplete></autocomplete>
</div>
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