I am using Angular 4, Reactive forms.I want to show validation error message when the user clicks on Submit/Create Account button. Here is the HTML and typescript code that I am using.
<form [formGroup]="signupForm" (ngSubmit)="onSubmit()">
<div class="form-group">
<input type="text"
id="firstname"
name="firstname"
formControlName="firstname"
placeholder="First Name">
<span *ngIf="!signupForm.get('firstname').valid && signupForm.get('firstname').touched"
class="help-block"> Please Enter First Name (Minimum 2 Characters)</span>
</div>
<div class="form-group">
<input type="text"
id="lastname"
name="lastname"
formControlName="lastname"
placeholder="Last Name">
<span *ngIf="!signupForm.get('lastname').valid && signupForm.get('lastname').touched"
class="help-block"> Please Enter Last Name (Minimum 2 Characters)</span>
</div>
<div class="form-group">
<button type="submit"
class="btn btn-success btn-lg btn-qte">Create Account</button>
</div>
</form>
TYPE SCRIPT CODE
export class UserRegistrationComponent implements OnInit {
signupForm: FormGroup;
ngOnInit() {
this.signupForm = new FormGroup({
'firstname': new FormControl(null, [Validators.required, Validators.minLength(2)]),
'lastname': new FormControl(null, [Validators.required, Validators.minLength(2),]),
'businessname': new FormControl(null),
'phonenumber': new FormControl(null, [Validators.required]),
'email': new FormControl(null, [Validators.required, Validators.email]),
'password': new FormControl(null, [Validators.required]),
'confirmpassword': new FormControl(null, Validators.required)
});
}
onSubmit() {
console.log(this.signupForm)
}
}
Something like
onSubmit() {
console.log(this.signupForm)
this.signupForm.controls['firstname'].markAsTouched()
}