CheckboxRequiredValidator
directive
A Directive that adds the required validator to checkbox controls marked with the required attribute. The directive is provided with the NG_VALIDATORS multi-provider list.
See also
NgModules
Selectors
input[type=checkbox][required][formControlName]input[type=checkbox][required][formControl]input[type=checkbox][required][ngModel]
Inherited from RequiredValidator
Description
Adding a required checkbox validator using template-driven forms
The following example shows how to add a checkbox required validator to an input attached to an ngModel binding.
<input type="checkbox" name="active" ngModel required>Methods
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validate()
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Method that validates whether or not the checkbox has been checked. Returns the validation result if enabled, otherwise null. |
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control |
AbstractControl |
Returns
ValidationErrors | null
Inherited from RequiredValidator
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Licensed under the Creative Commons Attribution License 4.0.
https://v7.angular.io/api/forms/CheckboxRequiredValidator