当我将它放在路由器组件下时，@Input 绑定不起作用 [英] @Input binding doesn't work when I put it under a router component

问题描述

更新

答案

我刚刚发现发生了什么.我必须在 systemjs 之后加载脚本 pollyfills.嗯，这是路由器的一个已知问题:

I've just found out what happened. I have to load the script pollyfills after systemjs. Well, this is an known issue of the router:

Concat/Load Order

'node_modules/systemjs/dist/system.src.js',
'node_modules/angular2/bundles/angular2-polyfills.js'

<小时>

问题

我正在尝试在我的应用程序中使用我自己的组件库.将组件放在 router 组件内的页面下后，组件的 title 用 @Input 修饰后不显示:

I am trying to use my own component library in my app. After I put the component under a page inside a router component, the component's title decorated with @Input doesn't show up:

我需要它在页面内呈现 title 属性.

I need it renders the title properties inside the page.

附注:

• 我看到了这个一个，但它不适合就我而言.

• I see this one but it doesn't fit in my case.

@Input:link

依赖关系

{
    "angular2": "2.0.0-beta.7",
    "systemjs": "0.19.22",
    "es6-promise": "^3.0.2",
    "es6-shim": "^0.33.3",
    "reflect-metadata": "0.1.2",
    "rxjs": "5.0.0-beta.2",
    "zone.js": "0.5.15"
}

组件

import {Component, Input} from 'angular2/core';

@Component({
    selector: 'test',
    template: `
            OK MAN PLZ WORK
            {{title}}
    `
})
export class Test {
    @Input() title: string;
}

容器

import {Component} from 'angular2/core';

import {Test} from './test'

@Component({
    selector: 'container',
    directives: [Test],
    template: `
    <test title="test"></test>
    `
})
export class Container {

}

启动

import {Component} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser';
import {RouteConfig, ROUTER_DIRECTIVES, ROUTER_PROVIDERS } from 'angular2/router';

import {Container} from './container;

@Component({
    selector: 'app',
    directives: [ROUTER_DIRECTIVES],
    template: `
        <router-outlet></router-outlet>
    `
})
@RouteConfig([
    { path: '/', component: Container, name: 'Container'}
])
class AppComponent {}
bootstrap(AppComponent, ROUTER_PROVIDERS);

推荐答案

这对我有用.我在 title 输入中收到了测试值.请参阅此 plunkr:https://plnkr.co/edit/dZSMbVnvoNRXSbiNFbQX?p=preview.

This works for me. I received the test value in the title input. See this plunkr: https://plnkr.co/edit/dZSMbVnvoNRXSbiNFbQX?p=preview.

预期的行为是什么，您希望 {{title}} 显示 "test"?

What is the expected behavior, you want that {{title}} displays "test"?

这篇关于当我将它放在路由器组件下时，@Input 绑定不起作用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IT屋！