CheckBox Overview
The CheckBox enables you to style input type="checkbox" elements.
Basic Usage
The CheckBox lets the user toggle between checked and unchecked states. All regular <input type="checkbox"> HTML attributes and Angular bindings are applicable.
Associating with Labels
The CheckBox can be associated with an HTML label element like the regular <input type="checkbox"> or with the Label component.
Forms Support
You can use the CheckBox in template-driven or reactive forms.
Template Forms
The template-driven forms enable you to bind the CheckBox to the forms model by using the ngModel directive.
The following example demonstrates how to use the CheckBox in a template-driven form.
Reactive Forms
The FormGroup provides a way to render reactive forms. For more details, refer to the Angular Documentation.
The following example demonstrates how to use the CheckBox in a reactive form.
FormField Association
The following example demonstrates how to use the CheckBox within a FormField component and provide hint and error messages.
The FormField automatically inserts the label before any form control. In order to position checkbox before label, the two elements should be nested within a wrapper element.
Required CheckBox
You can make the CheckBox required.
To do so use one of the following:
requiredattribute- Angular property binding syntax
- Angular Form Validator
Indeterminate State
The CheckBox can display an indeterminate state when the respective property is set to true.
The indeterminate state is independent of the checked state and upon user interaction the current checked state will be displayed.
Disabled CheckBox
By default, the CheckBox is enabled.
To disable user interaction with the element, use the disabled attribute or Angular property binding.
