本文介绍了如何共享$作用域属性,而不是它在angularjs两个控制器之间的价值?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我是新手对Aβ,我试图与另一个控制器共享$ scope.showdropdown指令,使得第二控制器可以调用这个指令在它的身上。

I'm newbie to AJs, and I'm trying to share $scope.showdropdown directive with another controller so that the second controller can call this directive in its body.

.controller('firstCtrl', function($scope){
    $scope.showdropdown = false; // this is part of this controller 

})

.controller('secondCtrl', function($scope){
   if(username and pass correct){
      $scope.showdropdown = true; // I want to call this here, but I can't do it bcoz its not part of the same controller!!! 
   }
})

我试过各种事情,工厂等,并没有运气
有人可以告诉我怎么才能做到这一点,请!

I tried all sorts of thing, factory etc. and had no luckCan someone show me how can this be done please!

推荐答案

如果这是你需要的控制器(即没有的功能,验证或其他模型逻辑)之间共享只简单的数据,你可以使用服务:

If it's only simple data that you need to share between the controllers (ie no functionality, validation, or other model logic), you can use a value service:

.controller('firstCtrl', function($scope, myVal){
    $scope.shared = myVal; // 'shared' on scope now references value service
    $scope.shared.showdropdown = false;

})
.controller('secondCtrl', function($scope, myVal){
   $scope.shared = myVal;
   if(username and pass correct){
      $scope.shared.showdropdown = true; // updates myVal value
   }
})
.value('myVal', {}) // register service, initializing with an object object

这个概念是一个工厂服务服务类型和实现,同样是非常相似的。与其中的一个去,如果你需要共享的功能,而不仅仅是数据。工厂例如:

The concept is the same for a factory or service service type and the implementation is very similar. Go with one of these if you need to share functionality, not just data. Factory example:

.controller('firstCtrl', function($scope, MyFactory){
    $scope.shared = MyFactory;
    ...
})
.controller('secondCtrl', function($scope, MyFactory){
    $scope.shared = MyFactory;
    ...
})
.factory('MyFactory', function(){
    var obj = {
        //showdropdown: false
    };

    obj.someFunc = function(){};

    return obj;
})

这篇关于如何共享$作用域属性,而不是它在angularjs两个控制器之间的价值?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!

10-29 01:25