@angular/forms

MaxValidator

directive

A directive which installs the MaxValidator for any formControlName, formControl, or control with ngModel that also has a max attribute.

class MaxValidator {
}

Adding a max validator

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

          
            <input type="number" ngModel max="4">

max

string | number

Tracks changes to the max bound to this directive.

validate

ValidationErrors

@paramcontrolAbstractControl<any, any>

@returnsValidationErrors

registerOnValidatorChange

void

@paramfn() => void

@returnsvoid

enabled

boolean

Determines whether this validator should be active or not based on an input. Base class implementation checks whether an input is defined (if the value is different from null and undefined). Validator classes that extend this base class can override this function with the logic specific to a particular validator directive.

@paraminputunknown

@returnsboolean