TypeError: Cannot create property 'validator' on string 'abc@gmail.com' at setUpControl
<form [formGroup]="form" (ngSubmit)="onSubmit(form.value)" class="form-horizontal"> <div class="form-group row"> <label for="inputEmail3" class="col-sm-4 ">Username</label> <div class="col-sm-8"> <input formControlName="email" type="text" class="form-control" id="inputEmail3" placeholder="Email Address" [readonly]="isReadOnly"> </div> </div></form>
please try like this change [formControl]
to formControlName
.
And to set the output to the input field please do the following, point the line this.form.patchValue
import { Component } from '@angular/core';import { FormGroup, AbstractControl, FormBuilder, Validators } from '@angular/forms';import { Router, ActivatedRoute } from '@angular/router';import { EmailValidator, EqualPasswordsValidator } from '../../theme/validators';@Component({ selector: 'register', templateUrl: './register.html',})export class Register { public form: FormGroup; public email: AbstractControl; public username: string; constructor(private registerService: RegisterService, fb: FormBuilder, private router: Router, private route: ActivatedRoute) { this.form = fb.group({ 'email': ['', Validators.compose([Validators.required])] .... etc.. }); this.email = this.form.controls['email']; this.registerService.getUser({ userId: "asdasd2123da2das" }).subscribe(posts => { if (posts) { var userObj = posts.json(); console.log("userObj : ", userObj.data); if (userObj.data && userObj.data[0].email) { this.email = this.username = userObj.data[0].email; // ouput : abc@gmail.com this.form.patchValue({ email : this.email }); this.isReadOnly = true; this.router.navigateByUrl('/register'); } else { alert("You are Not Autorize to access this Page"); this.router.navigateByUrl('/login'); } } });
I missed the square brackets in formGroup in markup as below
<form formGroup="form"></form>
and it throws similar error as
ERROR TypeError: Cannot create property 'validator' on string 'form'
Once the square brackets added in formGroup (see below), the error disappears
<form [formGroup]="form">....</form>
For complete information about each kind of form, see Reactive Forms and Template-driven Forms from the https://angular.io/guide/forms-overview website. you are missing actual syntax for Grouping form controls and Registering the control in the template.both are valid in different case
<input type="text" [formControl]="name"><input type="text" formControlName="firstName">