FormCraftValidator class sealed

An abstract class for defining form field validators in the FormCraft framework.

Extend this class to create custom validators for your form fields. The validate method should return an error message if validation fails,

Implementers

• FormCraftCustomValidator
• FormCraftEmailValidator
• FormCraftRequiredFieldValidator

Constructors

FormCraftValidator.custom({required String message, required bool predicate(String? input)})

A custom validator for use with the FormCraft form validation framework.

const

factory

FormCraftValidator.email([String message])

A validator for validating email addresses.

const

factory

FormCraftValidator.required([String message])

A validator for ensuring a field is not empty.

const

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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(String input) → String?

Validates the given input and returns an error message if validation fails. Returns null if the input is valid.

Operators

operator ==(Object other) → bool

The equality operator.

inherited