angular - 获取 Angular primeng中多个复选框的值

Question

• 想要从多个复选框中获取值。
• 每行包含用户名和授予用户的权限，即读、写。
• 在下面的代码中，我尝试授予用户 ie 读取、写入的权限。
• 对于 UI，我使用 primeng 复选框。
• 检查读取的值是否需要添加到用户数组中。

app.component.ts

import { Component, OnInit } from '@angular/core';
import { supportsWebAnimations } from '@angular/animations/browser/src/render/web_animations/web_animations_driver';

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

  users: Array<any>;
  permissions: Array<any> = [];


  ngOnInit(){

    this.users = [
      {id: 1, name: 'Sam', permission: []},
      {id: 2, name: 'Adam', permission: []},
      {id: 3, name: 'Chris', permission: []}
    ]


  }
}

app.component.html

<h3 class="first">Permission</h3>
<div class="ui-g" style="margin-bottom:10px; ">
    <div  class="ui-g-2"><b>Name</b></div>
    <div  class="ui-g-2"><b>Read</b></div>
    <div  class="ui-g-2"><b>Write</b></div>
</div>
<div class="ui-g" style="margin-bottom:10px;" *ngFor ="let user of users; let i = index">
    <div  class="ui-g-2">{{user.name}}</div>
    <div  class="ui-g-2"><p-checkbox name="group[i]" value="Read"  [(ngModel)]="permissions[i]" inputId="R"></p-checkbox></div> 
    <div  class="ui-g-2"><p-checkbox name="group[i]" value="Write"  [(ngModel)]="permissions[i]" inputId="W"></p-checkbox></div>
</div>

Answer 1

您可以维护一个permission对象并将其绑定(bind)到您的复选框，而不是维护一个permission数组。

在这种情况下，无需维护索引。

您的代码将如下所示:

import { Component, OnInit } from '@angular/core';
import { supportsWebAnimations } from '@angular/animations/browser/src/render/web_animations/web_animations_driver';

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

  users: Array<any>;
  permissions: Array<any> = [];


  ngOnInit(){

    this.users = [
      {id: 1, name: 'Sam', permission: { read: true, write: true}},
      {id: 2, name: 'Adam', permission: { read: false, write: true}},
      {id: 3, name: 'Chris', permission: { write: true, read: false}}
    ]
  }

} 

还有你的 HTML:

<h3 class="first">Permission</h3>
<div class="ui-g" style="margin-bottom:10px; ">
    <div  class="ui-g-2"><b>Name</b></div>
    <div  class="ui-g-2"><b>Read</b></div>
    <div  class="ui-g-2"><b>Write</b></div>
</div>
<div class="ui-g" style="margin-bottom:10px;" *ngFor ="let user of users; let i = index">
    <div  class="ui-g-2">{{user.name}}</div>
    <div  class="ui-g-2"><p-checkbox type="checkbox" name="group[i]" value="Read"  [(ngModel)]="user.permission.read" inputId="R"></p-checkbox></div> 
    <div  class="ui-g-2"><p-checkbox type="checkbox" name="group[i]" value="Write"  [(ngModel)]="user.permission.write" inputId="W"></p-checkbox></div>
</div>

还有PrimeNG

您需要添加

binary="true"

归因于您的复选框

您可以看到demo这里