Angular 获取角度素描中多个复选框的值 要从多个复选框中获取值 每一行由用户名和授予用户的权限(即读、写)组成 在下面的代码中,我试图授予用户ie读、写权限 对于UI,我使用了“启动”复选框 检查时,需要将读取的值添加到用户数组中
应用程序组件.tsAngular 获取角度素描中多个复选框的值 要从多个复选框中获取值 每一行由用户名和授予用户的权限(即读、写)组成 在下面的代码中,我试图授予用户ie读、写权限 对于UI,我使用了“启动”复选框 检查时,需要将读取的值添加到用户数组中,angular,primeng,Angular,Primeng,应用程序组件.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.ht
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: []}
]
}
}
从'@angular/core'导入{Component,OnInit};
从“@angular/animations/browser/src/render/web_animations/web_animations_driver”导入{supportsWebAnimations}”;
@组成部分({
选择器:'应用程序根',
templateUrl:“./app.component.html”,
样式URL:['./app.component.scss']
})
导出类AppComponent实现OnInit{
用户:阵列;
权限:数组=[];
恩戈尼尼特(){
此文件的用户数=[
{id:1,名称:'Sam',权限:[]},
{id:2,名称:'Adam',权限:[]},
{id:3,名称:'Chris',权限:[]}
]
}
}
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>
权限
名称
阅读
写
{{user.name}
您的模型中必须有这些读/写标志,并将它们连接到适当的复选框。乙二醇
this.users = [
{id: 1, name: 'Sam', permission: {read:false,write:false}},
{id: 2, name: 'Adam', permission: {read:false,write:false}},
{id: 3, name: 'Chris', permission: {read:false,write:false}}
]
及
{{user.name}
模型中的值将根据复选框状态相应地切换为真/假。至少我会这样做。您可以维护
权限
对象并将其绑定到您的复选框中,而不是维护权限
数组
在这种情况下,不需要维护索引
您的代码如下所示:
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}}
]
}
}
从'@angular/core'导入{Component,OnInit};
从“@angular/animations/browser/src/render/web_animations/web_animations_driver”导入{supportsWebAnimations}”;
@组成部分({
选择器:“我的应用程序”,
templateUrl:“./app.component.html”,
样式URL:['./app.component.css']
})
导出类AppComponent实现OnInit{
users:Array here单击复选框后在users数组中获取null。输出为[{“id”:1,“name”:“Sam”,“permission”:{“read”:[null],“write”:false}},{“id”:2,“name”:“Adam”,“permission”:{“read”:[null],“write”:false},{“id”:3,“name”:“Chris”,“permission”:{“read”:[null],“write”:false}]看起来Priming复选框需要binary=“true”
才能工作。感谢@Asim Hashmi,可以使用Priming来完成,因为在演示Priming复选框中。再次感谢@Asim Hashmi,现在它工作得很好。
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}}
]
}
}
<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>