angular的hero例子（3）

就是把detail放在另一个组件里

ng generate component hero-detail

代码：

heroes.component.ts

import { Component, OnInit } from '@angular/core';
import { Hero } from '../hero';

@Component({
selector: 'app-heroes',
templateUrl: './heroes.component.html',
styleUrls: ['./heroes.component.css']
})
export class HeroesComponent implements OnInit {
hero: Hero = {
id: 1,
name: 'Windstorm'
};

constructor() { }

ngOnInit() {
}

}

heroes.component.html

<h2>My Heroes</h2>

<ul class="heroes">
<li *ngFor="let hero of heroes"
[class.selected]="hero === selectedHero"
(click)="onSelect(hero)">
<span class="badge">{{hero.id}}</span> {{hero.name}}
</li>
</ul>

<app-hero-detail [hero]="selectedHero"></app-hero-detail>

app.component.html

<h1>{{title}}</h1>
<app-heroes></app-heroes>

app.component.ts

import { Component, OnInit } from '@angular/core';
import { Hero } from '../hero';
import { HEROES } from '../mock-heroes';

@Component({
selector: 'app-heroes',
templateUrl: './heroes.component.html',
styleUrls: ['./heroes.component.css']
})
export class HeroesComponent implements OnInit {

heroes = HEROES;

selectedHero: Hero;

constructor() { }

ngOnInit() {
}

onSelect(hero: Hero): void {
this.selectedHero = hero;
}
}

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms'; // <-- NgModel lives here

import { AppComponent } from './app.component';
import { HeroesComponent } from './heroes/heroes.component';

@NgModule({
declarations: [
AppComponent,

bf75
HeroesComponent
],
imports: [
BrowserModule,
FormsModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }

hero.ts

export class Hero {
id: number;
name: string;
}

mock-heroes.ts

/**
* Created by gmy on 2017/12/4.
*/
import { Hero } from './hero';

export const HEROES: Hero[] = [
{ id: 11, name: 'Mr. Nice' },
{ id: 12, name: 'Narco' },
{ id: 13, name: 'Bombasto' },
{ id: 14, name: 'Celeritas' },
{ id: 15, name: 'Magneta' },
{ id: 16, name: 'RubberMan' },
{ id: 17, name: 'Dynama' },
{ id: 18, name: 'Dr IQ' },
{ id: 19, name: 'Magma' },
{ id: 20, name: 'Tornado' }
];

heroes.component.css

.selected {
background-color: #CFD8DC !important;
color: white;
}
.heroes {
margin: 0 0 2em 0;
list-style-type: none;
padding: 0;
width: 15em;
}
.heroes li {
cursor: pointer;
position: relative;
left: 0;
background-color: #EEE;
margin: .5em;
padding: .3em 0;
height: 1.6em;
border-radius: 4px;
}
.heroes li.selected:hover {
background-color: #BBD8DC !important;
color: white;
}
.heroes li:hover {
color: #607D8B;
background-color: #DDD;
left: .1em;
}
.heroes .text {
position: relative;
top: -3px;
}
.heroes .badge {
display: inline-block;
font-size: small;
color: white;
padding: 0.8em 0.7em 0 0.7em;
background-color: #607D8B;
line-height: 1em;
position: relative;
left: -1px;
top: -4px;
height: 1.8em;
margin-right: .8em;
border-radius: 4px 0 0 4px;
}

hero-detail.component.ts

import { Component, OnInit, Input } from '@angular/core';
import { Hero } from '../hero';

@Component({
selector: 'app-hero-detail',
templateUrl: './hero-detail.component.html',
styleUrls: ['./hero-detail.component.css']
})
export class HeroDetailComponent implements OnInit {
@Input() hero: Hero;

constructor() { }

ngOnInit() {
}

}

hero-detail.component.html

<div *ngIf="hero">

<h2>{{ hero.name | uppercase }} Details</h2>
<div><span>id: </span>{{hero.id}}</div>
<div>
<label>name:
<input [(ngModel)]="hero.name" placeholder="name"/>
</label>
</div>

</div>