Angular5中提取公共组件之radio list的实例代码

Angular5中提取公共组件之radio list的实例代码_AngularJS

无忌哥哥

Lepaskan： 2018-07-12 14:26:51

asal

1898 orang telah melayarinya

这篇文章主要介绍了Angular5中提取公共组件之radio list的实例代码，非常不错，具有一定的参考借鉴价值,需要的朋友可以参考下

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 &#39;@angular/core&#39;;
import { RadioItem } from &#39;../../model/radio&#39;;
import { NgModel } from &#39;@angular/forms&#39;;
@Component({
  selector: &#39;app-radio-list&#39;,
  templateUrl: &#39;./radio-list.component.html&#39;,
  styleUrls: [&#39;./radio-list.component.css&#39;]
})
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);
  }
}

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radio-list.component.html

<p *ngIf="list" class="form-row">
  <p class="col-{{colNum}} mb-2" *ngFor="let item of list">
    <p 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>
    </p>
  </p>
</p>

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在相关引用的module中注册

import { RadioListComponent } from &#39;../components/radio-list/radio-list.component&#39;;
export const routes = [
  { path: &#39;&#39;, component: xxxComponent, pathMatch: &#39;full&#39; }
];
@NgModule({
  imports: [...],
  declarations: [...
    , RadioListComponent
    , ...],
  providers: []
})
export class xxxModule {
  static routes = routes;
}

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对应的html中引用如下：

 <app-radio-list [list]="sourceArr"
         [name]="&#39;selectedSource&#39;"
         [colNum]="12"
        [(selectModel)]="selectedSource"
        (selectChange)="selectChange($event)">
 </app-radio-list>

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按照如上步骤，还缺少对应的selectChange($event):

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

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