FormValidityNotification class
A notification sent when a form field's validation state changes.
FormValidityNotification is dispatched through the notification system when a field's validity transitions between valid, invalid, or null states. Useful for updating UI or tracking form validation status.
- Inheritance
-
- Object
- Notification
- FormValidityNotification
Constructors
- FormValidityNotification(ValidationResult? newValidity, ValidationResult? oldValidity)
-
Creates a FormValidityNotification with old and new validity states.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- newValidity → ValidationResult?
-
The new validation result, or null if now valid.
final
- oldValidity → ValidationResult?
-
The previous validation result, or null if there was none.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
debugFillDescription(
List< String> description) → void -
Add additional information to the given description for use by toString.
inherited
-
dispatch(
BuildContext? target) → void -
Start bubbling this notification at the given build context.
inherited
-
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