如何从 AngularJS 中的另一个控制器调用函数? [英] How to call a function from another controller in AngularJS?
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问题描述
我需要在 AngularJS 的另一个控制器中调用一个函数.我该怎么做?
I need to call a function in another controller in AngularJS. How can I do this?
代码:
app.controller('One', ['$scope',
function($scope) {
$scope.parentmethod = function() {
// task
}
}
]);
app.controller('two', ['$scope',
function($scope) {
$scope.childmethod = function() {
// Here i want to call parentmethod of One controller
}
}
]);
推荐答案
控制器之间的通信通过 $emit
+ $on
/$broadcast
+ $on
方法.
Communication between controllers is done though $emit
+ $on
/ $broadcast
+ $on
methods.
所以在你的情况下,你想在控制器二"中调用控制器一"的方法,正确的方法是:
So in your case you want to call a method of Controller "One" inside Controller "Two", the correct way to do this is:
app.controller('One', ['$scope', '$rootScope'
function($scope) {
$rootScope.$on("CallParentMethod", function(){
$scope.parentmethod();
});
$scope.parentmethod = function() {
// task
}
}
]);
app.controller('two', ['$scope', '$rootScope'
function($scope) {
$scope.childmethod = function() {
$rootScope.$emit("CallParentMethod", {});
}
}
]);
在调用 $rootScope.$emit
时,您可以发送任何数据作为第二个参数.
While $rootScope.$emit
is called, you can send any data as second parameter.
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