MaxLengthRule class

A validation rule that checks if the value's length does not exceed a maximum length.

Inheritance

• Object
• ValidatorRule
• MaxLengthRule

Constructors

MaxLengthRule(int maxLength, {String? errorMessage})

Creates a MaxLengthRule with the given maxLength and an optional errorMessage.

const

Properties

defaultMessage → Map<String, String>

Default error messages for different locales.

no setter, override

errorMessage → String?

The error message to be displayed if validation fails.

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

maxLength → int

The maximum allowed length for the field.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

isValid(BuildContext context, String? value) → String?

Validates if the value is at most maxLength characters long.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited