# Validation

The MaskedTextBox features a built-in mask validator which ensures that the user submits a valid input.

By default, the validator is enabled. To turn it off, set the [`maskValidation`](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/maskedtextboxcomponent#maskvalidation) property to `false`.

[Demo Source](https://demos.telerik.com/kendo-angular-ui/demos/inputs/maskedtextbox/validation/source.txt)

## Suggested Links

* [API Reference of the MaskedTextBox](https://www.telerik.com/kendo-angular-ui-develop/components/inputs/api/maskedtextboxcomponent)