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.
required
string | booleanTracks changes to the required attribute bound to this directive.
enabled
boolean@paraminput
boolean@returns
booleanngOnChanges
void@returns
voidvalidate
ValidationErrors | null@returns
ValidationErrors | nullregisterOnValidatorChange
void@paramfn
() => void@returns
voidDescription
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.
Exported by
Usage Notes
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>
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