javascript - Invoking Main Controller function from Modal Controller - AngularJS -

problem summary
want invoke getcost function present in main controller, modal controller.
pseudo-code explain problem follows.

i am opening modal dialog follows:

.... //i want invoke getcost function modal controller //so pass via 'resolve'       $scope.getcost = function() {             return i*x+y;//calculates , returns cost        }          $modal.open({              templateurl: '/html/mymodal.html',              controller: mymodalctrl,              resolve: {             getcostnow: function () {                 return $scope.getcost;              }          }         }); ..... 

and in mymodalctrl like:

var mymodalctrl = function($scope, $modalinstance, $http, getcostnow) {    function updateorder()   {      //trying invoke getcost function reference here      //but not work.      var thecurrentcostis = getcostnow();   } } 

try (notice scope:$scope):

$modal.open({     templateurl: '/html/mymodal.html',     controller: mymodalctrl,          scope:$scope,     resolve: {         getcostnow: function () {            return $scope.getcost;         }     } }); 

you can use event listeners, send event:

$scope.$emit(name, args); 

and in parent listen event:

$scope.$on('eventname', function(event, data) { console.log(data); });