更改* ngfor中的事件功能以获取复选框(change event function in *ngfor for checkbox)

 我正在研究使用Angular 2的项目。 
 
 在这种情况下，我必须从数组中创建一个复选框，所以我这样做： 
 
<span *ngFor="let key of keysArray; let i = index;" >
    <input type="checkbox" checked  [value]="key"> {{key}}
  </span>
 
 现在我想要为每个复选框更改/点击事件，所以我添加（更改）事件，如下所示： 
 
<span *ngFor="let key of keysArray; let i = index;" >
    <input type="checkbox" checked (change)="checkChange($event.checked)"  [value]="key"> {{key}}
  </span>
 
 组件中的功能： 
 
checkChange(event){
      alert(event)
    }
 
 但是，当我运行代码时，它显示错误： 
 
self.parentView.context.checkChange is not a function

I am working on the project that use Angular 2.
 
In on of the situation is I have to create a checkbox from the array, So I do as follows:
 
<span *ngFor="let key of keysArray; let i = index;" >
    <input type="checkbox" checked  [value]="key"> {{key}}
  </span>
 
Now I want change/click event for every checkbox, So I do added (change) event like follow:
 
<span *ngFor="let key of keysArray; let i = index;" >
    <input type="checkbox" checked (change)="checkChange($event.checked)"  [value]="key"> {{key}}
  </span>
 
Function in component: 
 
checkChange(event){
      alert(event)
    }
 
But when I run the code it showing error:
 
self.parentView.context.checkChange is not a function

原文：https://stackoverflow.com/questions/42909993