CallbackValidator class

Inheritance

• Object
• Validator
• CallbackValidator

Constructors

CallbackValidator({required bool callback(String?), required String longErrorMessage, required String shortErrorMessage})

Properties

callback ↔ bool Function(String?)

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isValid → bool

Return the state of the validator after the most recent validation.

no setter, override

longErrorMessage → String?

Return a long error message if the input is invalid

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

shortErrorMessage → String?

Return a short error message if the input is invalid

no setter, override

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

validate(BuildContext context, String fieldName, String? value) → String?

Function to validate the form input. It takes a string and returns an String error message if the input is invalid or null if the input is valid.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited