ngForm
<form #f="ngForm" (ngSubmit)="onSubmit(f)" novalidate>
<input name="first" ngModel required #first="ngModel">
<input name="last" ngModel>
<button>Submit</button>
</form>
<p>First name value: {{ first.value }}</p>
<p>First name valid: {{ first.valid }}</p>
<p>Form value: {{ f.value | json }}</p>
<p>Form valid: {{ f.valid }}</p>angular html input validation template driven
content_copy
<input id="name" name="name" class="form-control"
required minlength="4" appForbiddenName="bob"
[(ngModel)]="hero.name" #name="ngModel" >
<div *ngIf="name.invalid && (name.dirty || name.touched)"
class="alert alert-danger">
<div *ngIf="name.errors.required">
Name is required.
</div>
<div *ngIf="name.errors.minlength">
Name must be at least 4 characters long.
</div>
<div *ngIf="name.errors.forbiddenName">
Name cannot be Bob.
</div>
</div>Copyright © 2021 Codeinu
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