ng2父子模块数据交互
一、父模块向子模块传值
//父html <my-child [childdata]="parentdata"></my-child>
其中,my-child为子模块的selector标签,childdata为子模块声明的变量(用来保存父模块传递过来的值),parentdata为父模块声明的变量(保存着父模块的值)
子模块中引用父模块传过来的值:
//child.component.ts import { Component, OnInit,Input } from '@angular/core'; @component({ selector:'my-child', ... }) export class ChildComponent implements OnInit{ @Input() childdata:any; //Do some action with childdata }
二、子模块向父模块传递事件
子模块传出事件:
//child.component.ts import { Component, OnInit,Output } from '@angular/core'; @component({ selector:'my-child', ... }) export class ChildComponent implements OnInit{ @OUtput() childevent=new EventEmitter(); //Do some action }
父html引用事件:
<my-child (childevent)="parentevent($event)"></my-child>
其中childevent为子模块事件,parentevent为父模块事件