角：使用与放大器调用指令链接功能的内部控制器功能; [英] Angular: calling controller function inside a directive link function using &

问题描述

我们正在运行到一个问题，试图调用传递到使用符号指令功能'和;'在我们指导的链接功能。

We're running into a problem trying to call a function passed into a directive using the ampersand '&' in our directive's link function.

这似乎函数被调用的控制器上，但没有参数在调用中传递。我们已经看到了所有的例子涉及通过创建模板调用路过。有没有办法打电话给你的指令从它的模板功能，然后做一些在调用传递给它的控制器功能的指令？

It seems the function is called on the controller but no arguments are passed in the call. All the examples we have seen involve passing through by creating a call in template. Is there a way to call a function on your directive from its template, then do something in the directive that calls the controller function passed into it?

推荐答案

您传递参数中的 {} S'例如，该指令的链接功能在里面，你要调用的方法，像这样： scope.someCtrlFn（{ARG1：someValue中}）;

Are you passing the arguments inside {}s? E.g., inside the directive's link function, you'll want to call the method like so: scope.someCtrlFn({arg1: someValue});

<div my-directive callback-fn="ctrlFn(arg1)"></div>

app.directive('myDirective', function() {
    return {
        scope: { someCtrlFn: '&callbackFn' },
        link: function(scope, element, attrs) {
            scope.someCtrlFn({arg1: 22});
        },
    }
});

function MyCtrl($scope) {
    $scope.ctrlFn = function(test) {
        console.log(test);
    }
}

小提琴。

这篇关于角：使用与放大器调用指令链接功能的内部控制器功能;的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！