ContainsRule class

A rule that checks if a value contains a specific substring.

Inheritance

• Object
• ValidatorRule
• ContainsRule

Constructors

ContainsRule(String substring, {String? errorMessage})

Creates a new ContainsRule with the given substring and optional errorMessage.

const

Properties

defaultMessage → Map<String, String>

Provides default error messages in various languages.

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

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

substring → String

The substring that must be contained in the value.

final

Methods

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

Checks if the value contains the substring.

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