我有一个嵌套的ngFor Checkbox ..我只需要设置NgModel来检查复选框是否被选中?
<ion-item-group *ngFor="let patient of Patients; let i= index">
<ion-item-divider color="light">{{patient.conditionGroup}}</ion-item-divider>
<ion-item *ngFor="let condition of patient.conditions; let j= index">
<ion-label>{{condition}}</ion-label>
<ion-checkbox id="{{condition}}" [(ngModel)]="checkStatus[i][j]" (ionChange)="mylist(i,j,condition)" color="danger"></ion-checkbox>
</ion-item>
</ion-item-group>
我的控制器是这样的..
{
this.checkStatus=[];
this.Patients = [];
for(var s=0;s<this.Patients.length;s++)
{this.checkStatus[s]=[];}
}
How do i check if the checkbox is checked.. error
ERROR TypeError: Cannot read property '0' of undefined
患者
[
{
"conditionGroup": "Family Care",
"conditions": [
"Head",
"Poisoning",
"Stroke"
]
}
]
在myList()中我需要将选中的选项推送到数组中。
答案 0 :(得分:0)
控制器代码
import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
@Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
checkStatus = [];
Patients = [];
constructor(public navCtrl: NavController) {
this.initPatients();
}
initPatients(){
this.Patients = [
{
"conditionGroup": "Family Care",
"conditions": [
"Head",
"Poisoning",
"Stroke"
]
},
{
"conditionGroup": "Family Care",
"conditions": [
"Head",
"Poisoning",
"Stroke"
]
},
{
"conditionGroup": "Family Care",
"conditions": [
"Head",
"Poisoning",
"Stroke"
]
}
];
this.updateStatus();
}
updateStatus() {
for (var s = 0; s < this.Patients.length; s++)
{ this.checkStatus[s] = []; }
}
}
Html代码
<ion-header>
<ion-navbar>
<ion-title>Home</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
<ion-item-group *ngFor="let patient of Patients; let i= index">
<ion-item-divider color="light">{{patient.conditionGroup}}</ion-item-divider>
<ion-item *ngFor="let condition of patient.conditions; let j= index">
<ion-label>{{condition}}</ion-label>
<ion-checkbox id="{{condition}}" [(ngModel)]="checkStatus[i][j]" (ionChange)="mylist(i,j,condition)" color="danger"></ion-checkbox>
</ion-item>
</ion-item-group>
</ion-content>