CODEWITHSUNDEEP
angulartypescriptangular5formbuilder
CE0
CE0

Reputation: 191

Angular patchValue not setting input field value

I am trying to set an input value via form group using patchValue() but the input still remains blank, this is my code sample...

component.html

<form [formGroup]="createStoreForm" (ngSubmit)="createStore()" novalidate>
  <label for="user">Unique User ID</label>
    <input type="text" name="user" class="form-control" [(ngModel)]="storeProfile.user" [formControl]="createStoreForm.controls['user']" readonly>
    <div *ngIf="createStoreForm.controls['user'].hasError('required') && formSubmitAttempt" class="form-error">Store user is required</div>
</form>

component.ts

export class storeProfileComponent implements OnInit {
  storeProfile: any = {};
  userData: any = {};
  userId: any;
  createStoreForm: FormGroup;
  formSubmitAttempt: boolean;

  constructor(fb: FormBuilder, private storeSrv: StoreService, private router: Router) {
    this.createStoreForm = fb.group({
      'user': ['', Validators.required],
    });
  }

  ngOnInit() {
    let tempUser = localStorage.getItem('user');
    if (tempUser) {
      this.userData = JSON.parse(tempUser);
      this.userId = this.userData.id;
    };

  this.createStoreForm.patchValue({
    'user': this.userId.id,  // this.userId.id = undefined here
  });
 }
}

What is the right way to pass value from localStorage to the input field on the form?

Upvotes: 2

Views: 11167

Answers (2)

Muhammed Albarmavi
Muhammed Albarmavi

Reputation: 24434

Just remove ngModel and use createStoreForm.value to get from values

<form [formGroup]="createStoreForm" (ngSubmit)="createStore()" novalidate>
  <label for="user">Unique User ID</label>
    <input type="text" name="user" class="form-control" [formControl]="createStoreForm.controls['user']" readonly>
    <div *ngIf="createStoreForm.controls['user'].hasError('required') && formSubmitAttempt" class="form-error">Store user is required</div>
</form>

export class storeProfileComponent implements OnInit {
  storeProfile: any = {};
  userData: any = {};
  userId: any;
  createStoreForm: FormGroup;
  formSubmitAttempt: boolean;

  constructor(fb: FormBuilder, private storeSrv: StoreService, private router: Router) {
    this.createStoreForm = fb.group({
      'user': ['', Validators.required],
    });
  }

  ngOnInit() {
    let tempUser = localStorage.getItem('user');
    if (tempUser) {
      this.userData = JSON.parse(tempUser);
      this.userId = this.userData.id;
    };

  this.createStoreForm.patchValue({
    'user': this.userId.id,  
  });
 }

 public createStore(){
  console.log(this.createStoreForm.value); // get from values 
 }
}

Upvotes: 1

Pardeep Jain
Pardeep Jain

Reputation: 86790

You need to set value after getting value from local storage like this,

Try this -

export class storeProfileComponent implements OnInit {
  storeProfile: any = {};
  userData: any = {};
  userId: any;
  createStoreForm: FormGroup;
  formSubmitAttempt: boolean;

  constructor(public fb: FormBuilder, private storeSrv: StoreService, private router: Router) { }

  ngOnInit() {
    let tempUser = localStorage.getItem('user');
    if (tempUser) {
      this.userData = JSON.parse(tempUser);
      this.userId = this.userData.id;
    };

    this.createStoreForm = this.fb.group({
      'user': [this.userId.id, Validators.required],
    });
 }
}

<form [formGroup]="createStoreForm" (ngSubmit)="createStore()" novalidate>
  <label for="user">Unique User ID</label>
    <input type="text" name="user" class="form-control" formControl="user" readonly>
    <div *ngIf="createStoreForm.controls['user'].hasError('required') && formSubmitAttempt" class="form-error">Store user is required</div>
</form>

Upvotes: 1

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