Controller中定义了$scope.method = function(){}
Directive中需要引入$scope
http://stackoverflow.com/questions/23636727/how-to-call-controller-function-from-directive
JS:
angular.module(‘myApp‘, [])
.controller(‘MyController‘, function($scope){
$scope.showAlert = function(value){
alert(‘Called from directive: ‘ + value);
};
})
.directive(‘myDirective‘, function(){
return {
restrict: ‘E‘,
scope: {
alert: ‘&‘
},
controller: function($scope){
$scope.value = ‘directive scope value‘;
},
template: ‘<button ng-click="alert({message: value})">Alert</button>‘
}
});
HTML:
<body ng-app="myApp" ng-controller="MyController">
<my-directive alert="showAlert(message)"></my-directive>
</body>
My recommendation is to use $emit instead of calling a method of the controller directly in your directive.
Directives should be always independent components, if inside the directive there is a call to a method from a controller(outside the directive) this will create a dependency between my directive and the controller and of course this will force one not being able to exist without the other.
If I would have to apply a design principle to a directive it will be the S in SOLID, Single responsibility principle. Directives should be able to encapsulate and work independently.
On my controller the event is captured using $on like:
$scope.$on("ValueChanged", function(event, ars){
... //your event has been triggered.
});或者
var directive= function ( $sessionStorage, $localStorage) {
function work(scope, element, attrs, formCtrl) {
var watchPromise = attrs.createClaimForm || null;
element.bind(‘keypress‘, function (event) {
//此处scope就是$scope
scope.addBlankRowData();
}
});
return {
require: "form",
restrict: "A",
link: work
}
};
Controller中this.method = function(){}是获取不到的, 必须$scope