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TypeError: Die Eigenschaft 'validator' für die Zeichenfolge '[email protected]' in setUpControl kann nicht erstellt werden

Ich habe ein Problem in formGroup. Zuerst auf der Grundlage der URL nehme ich einen Wert an und rufe die API auf, um bestimmte Benutzerdaten für Vorfeldtext abzurufen.

register.html

<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 [formControl]="email" type="text" class="form-control" id="inputEmail3" placeholder="Email Address" [readonly]="isReadOnly">
        </div>
    </div>
</form>

register.component.ts

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 : [email protected]
            this.isReadOnly = true;
            this.router.navigateByUrl('/register');
          } else {
            alert("You are Not Autorize to access this Page");
            this.router.navigateByUrl('/login');
          }
        }
    });

  }
}

Fehlerdetails :

TypeError: Cannot create property 'validator' on string '[email protected]'
    at setUpControl (http://localhost:3004/vendor.dll.js:9739:23)
    at FormControlDirective.ngOnChanges (http://localhost:3004/vendor.dll.js:44196:89)
    at Wrapper_FormControlDirective.ngDoCheck (/ReactiveFormsModule/FormControlDirective/wrapper.ngfactory.js:50:18)
javascriptangularangular2-routingangular2-templateangular2-forms
12
higunjan
<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>

bitte versuchen Sie es wie folgt: Ändern Sie [formControl] in formControlName.

Um die Ausgabe auf das Eingabefeld zu setzen, gehen Sie wie folgt vor, zeigen Sie auf die Zeile 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 : [email protected]
            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');
          }
        }
    });
26
sainu

Umfassende Informationen zu den einzelnen Formulararten finden Sie unter Reaktive Formulare und Vorlagengestützte Formulare auf der Website https://angular.io/guide/forms-overview . Es fehlt die tatsächliche Syntax für das Gruppieren von Formularsteuerelementen und das Registrieren des Steuerelements in der Vorlage. Beide sind in unterschiedlichen Fällen gültig

<input type="text" [formControl]="name">
<input type="text" formControlName="firstName">
0
Vinayak Shedgeri