StartsWithRule class

A ValidatorRule that checks if a field starts with a specific prefix.

Inheritance

• Object
• ValidatorRule
• StartsWithRule

Constructors

StartsWithRule(String prefix, {String? errorMessage})

Creates a StartsWithRule with the given prefix 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

prefix → String

The prefix that the field value should start with.

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 starts with the prefix.

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