I created a template form based on various guides, but they are not working as expected. I have defined two models:
export class User {
constructor(public userId?: UserId,
public firstName?: String,
public lastName?: String,
public address?: Address) {
}
}
export class Address {
constructor(
public street?: String,
public city?: String,
public zipCode?: String) {
}
}
Here is the component I am using:
Component({
templateUrl: 'user.html'
})
export class MyComponent implements OnInit, OnDestroy{
user: User;
userForm: NgForm;
ngOnInit(): void {
}
Below is the code snippet of the page itself:
<form novalidate #userForm="ngForm">
<div class="form-group">
<input required minlength="4" type="text"
id="firstName"
[(ngModel)]="user.firstName" name="firstName">
<small *ngIf="!firstName.valid">Not valid!</small>
</div>
<div class="form-group">
<input required ng-minlength="4" type="text"
id="lastName"
[(ngModel)]="user.lastName" name="lastName">
</div>
<div ngModelGroup="user.address">
<div class="form-group">
<input required ng-minlength="4"
type="text"
id="address-house"
[(ngModel)]="user.address.address1" name="address.address1">
</div>
<div class="form-group">
<div class="form-group">
<input required ng-minlength="4"
type="text"
id="zipCode"
[(ngModel)]="user.address.zipCode" name="address.zipCode">
</div>
<div>
<input required ng-minlength="4"
type="text"
lass="form-control input-lg"
id="city"
[(ngModel)]="user.address.city" name="address.city">
</div>
</div>
</div>
<button type="button" (click)="checkAndProceed()">Continue</button>
</div>
</form>
I am looking to add validation to this form, but so far none of the resources I've looked at have been helpful. Is it possible to implement validation in HTML or TypeScript? Specifically, I want the validation to trigger when the 'Continue' button is clicked and only proceed if the form is valid.
When attempting to validate, I encountered this console error:
Cannot read property 'valid' of undefined