如何访问与隔离范围指令的控制器功能?控制器、指令、范围、功能

2023-09-13 02:50:26 作者:清故宸涼

我在我的控制器名称函数,如 enableEditor 这是工作,如果我直接HTML即调用函数(添加)。但是,如果我调用该函数为其通过指令即(编辑)创建的元素是行不通的。请看看我的code,如果任何想法指点我。

 <!DOCTYPE HTML>< HTML LANG =ENNG-应用=对myApp>< HEAD>  <间的charset =UTF-8>  <标题物实施例 - 例如,example53生产< /标题>  <脚本SRC =JS / angular.min.js>< / SCRIPT>< /头><机身NG控制器=MainCtrl>  < D​​IV用户名=>< / DIV>  < D​​IV>  < A HREF =#NG点击=enableEditor()>添加< / A>  < / DIV><脚本>VAR对myApp = angular.module('对myApp',[]); myApp.controller('MainCtrl',['$范围,$过滤',函数($范围,$过滤器){    $ scope.enableEditor =功能(){        警报(123);    };}]);myApp.directive(username的,函数(){    返回{            限制:A,            范围: {                值:=用户名            },            模板:'< D​​IV CLASS =点击编辑>' +            '< A HREF =#NG点击=enableEditor()>编辑< / A>' +            '< / DIV>'        };});< / SCRIPT>< /身体GT;< / HTML> 

解决方案

既然你有一个孤立的范围功能属于指令不是你的控制器的范围。尝试使用&安培; 在你的指令范围如下:

 <机身NG控制器=MainCtrl>  < D​​IV用户名=呼我=enableEditor()>< / DIV>  < D​​IV>  < A HREF =#NG点击=enableEditor()>添加< / A>  < / DIV><脚本>VAR对myApp = angular.module('对myApp',[]); myApp.controller('MainCtrl',['$范围,$过滤',函数($范围,$过滤器){    $ scope.enableEditor =功能(){        警报(123);    };}]);myApp.directive(username的,函数(){    返回{            限制:A,            范围: {                值:=用户名,                呼我:&放大器;            },            模板:'< D​​IV CLASS =点击编辑>' +            '< A HREF =#NG点击=呼我()>编辑< / A>' +            '< / DIV>'        };}); 

属性呼我=enableEditor()用于该方法传递到范围的指令,该指令范围使用&安培; 来表明它是方法呼我:&放大器;。又如:

方法2 =的someMethod()

 范围:{      值:=用户名,      呼我:&放大器;,      方法2:与&},模板:'< D​​IV CLASS =点击编辑>' +'< A HREF =#NG点击=呼我()>编辑< / A>' +'< A HREF =#NG点击=方法2()>保存< / A>' +'< / DIV>' 
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I have a function in my controller name as enableEditor it is working if i call the function from direct HTML i.e(add). But, if I call the function for a element which is created through the directives i.e(edit) is not working. Please look at my code and advice me if any ideas.

    <!doctype html>
<html lang="en" ng-app="myApp">
<head>
  <meta charset="UTF-8">
  <title>Example - example-example53-production</title>
  <script src="js/angular.min.js"></script>
</head>
<body ng-controller="MainCtrl">
  <div user-name=""></div>
  <div>
  <a href="#" ng-click="enableEditor()">add</a>
  </div>
<script>

var myApp = angular.module('myApp', []);

 myApp.controller('MainCtrl', ['$scope','$filter', function ($scope,$filter) {
    $scope.enableEditor = function() {
        alert("123");
    };  
}]);
myApp.directive("userName", function() {
    return {
            restrict: "A",
            scope: {
                value: "=userName"
            },
            template: '<div class="click-to-edit">' +
            '<a href="#" ng-click="enableEditor()">Edit</a>' +
            '</div>'
        };
});
</script>
</body>
</html>

解决方案

Since you have an isolated scope the function belongs to the scope of the directive not your controller. Try using & in your directives scope like this:

<body ng-controller="MainCtrl">
  <div user-name="" callme="enableEditor()"></div>
  <div>
  <a href="#" ng-click="enableEditor()">add</a>
  </div>
<script>

var myApp = angular.module('myApp', []);

 myApp.controller('MainCtrl', ['$scope','$filter', function ($scope,$filter) {
    $scope.enableEditor = function() {
        alert("123");
    };  
}]);
myApp.directive("userName", function() {
    return {
            restrict: "A",
            scope: {
                value: "=userName",
                callme:"&"
            },
            template: '<div class="click-to-edit">' +
            '<a href="#" ng-click="callme()">Edit</a>' +
            '</div>'
        };
});

The attribute callme="enableEditor()" is used to pass the method to the scope directive, the directive scope uses & to indicate it is method callme:"&". Another example:

method2="someMethod()" like

scope: {
      value: "=userName",
      callme:"&",    
      method2:"&"
},template: '<div class="click-to-edit">' + '<a href="#" ng-click="callme()">Edit</a>' + '<a href="#" ng-click="Method2()">Save</a>' + '</div>'