ContainsRule<T> class

Ensures that value contains given element.

Works with nulls by always throwing validation error. Works with Iterables (List, Set). Works with String when element is a Pattern. Works with Map assuming that element is a key or when element is a MapEntry it checks for value equality at the given MapEntry key.

Inheritance

• Object
• SuperFormFieldRule
• ContainsRule

Constructors

ContainsRule(T element, String message)

Properties

element → T

final

hashCode → int

The hash code for this object.

no setter, inherited

message → String

final

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.

override

validate(dynamic value) → ValidationError?

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited