ValueListenableValidationConnector<K, I> class

Validation Connector, that subscribes on provided ValueListenable

Allows to invoke validation on value change or clear validation errors as soon as value is changes.

Requires to be attached to the controller.

As soon as it attaches to controller, it starts listen provided ValueListenable.

Inheritance

Implemented types

Constructors

ValueListenableValidationConnector({required K field, required ValueListenable<I> valueListenable, required Validator<I> validator, bool validateOnChange = false, bool clearOnChange = true, bool validateOnAttach = false}): Creates default connector

clearOnChange → bool: Defines if error message should be removed when ValueListenable even is emitted.
final
controller → ValidationController<K>?: Attached ValidationController controller
no setterinherited
field → K: Field key for error message
finalinherited
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
validateOnAttach → bool: If value should be validated on connector attached to the controller
final
validateOnChange → bool: Defines if validation should be invoked on ValueListenable change
final
validator → Validator<I>: Validator for defined stream
final
valueListenable → ValueListenable<I>: ValueListenable with value that should be validated
final

attach(ValidationController<K> controller) → void: Attach connector to the validation controller
override
detach() → void: Detach connector from the validation controller
override
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?: Validate current field value. Returns error message if current value is invalid
override
validateField() → void: Validates field, and pushes result to the ValidationController
inherited