本文给大家说一下Radio List的公共组件提取。

Radio List组件提取起来很方便，不想Checkbox那么复杂。

radio-list.component.ts

import { Component, OnInit, Input, Output, EventEmitter } from '@angular/core';import { RadioItem } from '../../model/radio';import { NgModel } from '@angular/forms';@Component({ selector: 'app-radio-list', templateUrl: './radio-list.component.html', styleUrls: ['./radio-list.component.css']})export class RadioListComponent implements OnInit { @Input() list: RadioItem[]; @Input() name: string; @Input() colNum: number = 6; @Input("selectModel") model: string; @Output("selectChange") onChange: EventEmitter<any> = new EventEmitter<any>(); constructor() { } ngOnInit() { } changeSelected() { let data = { value: this.model, name: this.name }; this.onChange.emit(data); }}

radio-list.component.html

<div *ngIf="list" class="form-row"> <div class="col-{{colNum}} mb-2" *ngFor="let item of list"> <div class="form-check abc-radio abc-radio-primary"> <input class="form-check-input" type="radio" [value]="item.id" [(ngModel)]="model" (change)="changeSelected()" name="{{name}}" id="{{name}}_{{item.id}}"> <label class="form-check-label" for="{{name}}_{{item.id}}"> {{item.name}} </label> </div> </div></div>

在相关引用的module中注册

import { RadioListComponent } from '../components/radio-list/radio-list.component';export const routes = [ { path: '', component: xxxComponent, pathMatch: 'full' }];@NgModule({ imports: [...], declarations: [... , RadioListComponent , ...], providers: []})export class xxxModule { static routes = routes;}

对应的html中引用如下：

<app-radio-list [list]="sourceArr" [name]="'selectedSource'" [colNum]="12" [(selectModel)]="selectedSource" (selectChange)="selectChange($event)"> </app-radio-list>

按照如上步骤，还缺少对应的selectChange($event):

selectChange(model: any) { this[model.name] = model.value; }

总结

以上所述是小编给大家介绍的Angular5中提取公共组件之radio list的实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！