从子组件到父组件获取数据
[英]Get the data from Child Component to Parent Component
问题描述
I have a question regarding the rendering of dynamic component. 
我对动态组件的渲染有疑问。 I have a Parent component and a Child component . 我有一个Parent component和一个Child component 。 In child component template there are text fields and the user can enter values. 在child component template ，有文本字段，用户可以输入值。 In there, I also have a submit button, the function of submit button is declared in the Parent Component . 在那里，我还有一个提交按钮，在Parent Component声明了提交按钮的功能。
My problem now is when I clicked the submit button, I can't get the values that the user entered in Child Component Template . 现在的问题是，当我单击“提交”按钮时，无法获得用户在“ Child Component Template输入的值。 I have to get the latest data from child to parent . 我一定要得到的最新数据，从child到parent 。 I really don't have an idea on how to solve this I've seen @output but still reading tutorial about it. 我真的不知道如何解决这个问题，我已经看过@output但仍在阅读有关它的教程。 Do you have any idea on how to achieve this? 您对如何实现这一目标有任何想法吗？
1 个解决方案
解决方案1
1 2017-03-14 12:53:56
Basically the child component will output/emit an event with the data and parent component will subscribe/listen to the event (basically a Pub/Sub model). 基本上，子组件将输出/发出带有数据的事件，而父组件将订阅/监听事件（基本上是发布/订阅模型）。 This can be achieved through EventEmitter in Angular2. 这可以通过EventEmitter中的EventEmitter实现。 Please refer to this link also this one . 请参阅此链接也是这一个 。
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