Angular5中提取公共组件之radio list

上一篇说到了Checkbox List的公共组件提取，现在说一下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;
}