W3cubDocs

MaxLengthValidator

directive

A directive that adds max length validation to controls marked with the maxlength attribute. The directive is provided with the NG_VALIDATORS multi-provider list.

NgModules

```
ReactiveFormsModule
```
```
FormsModule
```

Selectors

[maxlength][formControlName]
[maxlength][formControl]
[maxlength][ngModel]

Properties

Property	Description
`@Input()maxlength: string \| number`	Tracks changes to the the maximum length bound to this directive.

Description

Adding a maximum length validator

The following example shows how to add a maximum length validator to an input attached to an ngModel binding.

<input name="firstName" ngModel maxlength="25">

© 2010–2020 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
https://v10.angular.io/api/forms/MaxLengthValidator