CODEWITHSUNDEEP
angularngforionic4
Jaime Cuellar
Jaime Cuellar

Reputation: 474

Get value from ng for generated inputs

I'm doing an app with Ionic framework, so far I have inputs generated by *ngFor and I want to get the value of each input after clicking on a button. I've tried with Reactive forms but was not able to make it work.

<ion-list>
  <ion-item *ngFor="let item of players; index as i">
    <ion-chip>
     <ion-input placeholder="Nombre jugador {{i+1}}"  type="text"></ion-input>
     <ion-icon name="person-add"></ion-icon>
   </ion-chip>
 </ion-item>
<br />
</ion-list>

and my .ts file.

 ngOnInit() {
  this.getJugadores();
 }

getJugadores(){
  this.storage.get("num_players").then(x =>{
    if (x){
      this.players = new Array(x);
    }else{
      console.log("error");
    }
  });
}

I want to store each value in an array of objects.

Upvotes: 2

Views: 615

Answers (1)

DeborahK
DeborahK

Reputation: 60528

With Angular, one of the easiest ways to get/set data onto a form is to simply use [(ngModel)] data binding.

1) Define a structure for your data. If you have multiple inputs, consider defining an array.

2) Bind to that structure using [(ngModel)].

Here is some information that may help: https://angular.io/guide/template-syntax#binding-syntax-an-overview

Template code

  <div *ngFor="let item of players; index as i">
     <input placeholder="Nombre jugador {{i+1}}"  type="text"
            [(ngModel)]="item.name"/>
 </div>

Component code

  players: Player[] = [];

  ngOnInit() {
    // Call a service to get data
    // Hardcoded here as an example
    this.players = [
      {id: 1, name: "Joe"},
      {id:2, name: "Stefan"}
    ]
  }

Interface code

export interface Player {
  id: number,
  name: string
}

I have a working example here: https://stackblitz.com/edit/angular-b5uppm

Upvotes: 3

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