[英]Passing checkbox value to array in Angular
我正在研究一種解決方案,其中根據乘客編號生成的每個輸入都會獲得額外的復選框。 我想傳遞每個復選框的值並將其綁定到它旁邊的輸入。 計划最終得到一個數組,其中我有輸入字段的值 + 每個復選框的值。 我不確定如何繼續前進。 目前,我有:
組件.HTML:
<li *ngFor="let passenger of createRange(showStorage.passengersNumber); let i=index"><input type="text" [(ngModel)]="passengersData[i]" placeholder="Name and surname">
<input type="checkbox" (click)="addChild($event)">Child
<input type="checkbox" (click)="addLuggage($event)">Luggage
</li>
組件.TS
constructor() {
this.passengersData = [];
}
public passengersData: any[];
public luggageCounter: number = 0;
public childrenCounter: number = 0;
createRange(number){
var items: number[] = [];
for(var i = 1; i <= number; i++){
items.push(i);
}
return items;
}
addLuggage(event) {
console.log("Added luggage");
this.luggageCounter++
}
addChild(event) {
this.childrenCounter++
console.log(event);
}
謝謝你的幫助!
STACKBLITZ: https://stackblitz.com/edit/flight-date-picker-with-service-done-qfmn6p
對兒童和行李使用具有 name 屬性和 boolean 屬性的數組,並僅在更新乘客數量並保留先前乘客的情況下重新生成數組。
這是一個有效的 StackBlitz https://stackblitz.com/edit/angular-ivy-s7dtu4?file=src%2Fapp%2Fapp.component.ts
Number of passengers <input type="text" [ngModel]="passengers.length" (ngModelChange)="updateNumOfPassengers($event)">
<li *ngFor="let passenger of passengers; let i=index">
<input type="text" [name]="'name_' + 1" [(ngModel)]="passenger.name" placeholder="Name and surname">
<input type="checkbox" [checked]="passenger.child" (change)="passenger.child = !passenger.child">Child
<input type="checkbox" [checked]="passenger.luggage" (change)="passenger.luggage = ! passenger.luggage">Luggage
</li>
passengers = [];
updateNumOfPassengers(input: string) {
const numOfPassengers = parseInt(input);
if (!isNaN(numOfPassengers) && numOfPassengers >= 0) {
const passengersToAdd = numOfPassengers - this.passengers.length;
if (passengersToAdd > 0) {
this.passengers = [...this.passengers, ...Array.from({ length: passengersToAdd }, _ => ({ name: '', child: false, luggage: false }))];
} else if (passengersToAdd < 0) {
this.passengers = this.passengers.filter((_, index) => index < numOfPassengers);
}
}
}
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