S2SingleSelection<T> class

Inheritance
Mixed-in types

Constructors

S2SingleSelection({required S2Choice<T>? initial, S2Validation<S2SingleChosen<T>>? validation})
Default constructor

Properties

choice S2Choice<T>?
Returns the choice item(s)
covariantgetter/setter pairoverride
error String
Validation error message
getter/setter pairinherited
group String?
Returns choice.group
no setterinherited
hashCode int
The hash code for this object.
no setterinherited
hasListeners bool
Whether any listeners are currently registered.
no setterinherited
initial S2Choice<T>?
The initial selection
covariantfinalgetter/setter pairinherited-setteroverride-getter
isEmpty bool
Returns true if there are no values in the chosen data
no setterinherited
isNotEmpty bool
Returns true if there is at least one value in the chosen data
no setterinherited
isNotValid bool
Returns true when the selection is not valid
no setterinherited
isValid bool
Returns true when the selection is valid
no setterinherited
length int
Returns the length of the choice
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
subtitle String?
Returns choice.subtitle
no setterinherited
title String?
Returns choice.title
no setterinherited
validation S2Validation<S2SingleChosen<T>>?
A function used to validate the selection
covariantfinalgetter/setter pairinherited-setteroverride-getter
value → T
Returns choice.value
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
clear() → void
Removes all choice(s) from the selection
override
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
has(S2Choice<T> choice) bool
Returns true if the chosen contains the supplied choice item
inherited
hasAll(List<S2Choice<T>> choices) bool
Returns `true if the chosen has every of the supplied choice items
inherited
hasAny(List<S2Choice<T>> choices) bool
Returns true if the chosen has any of the supplied choice items
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
reset() → void
Reset the current selection to the initial selection
override
select(S2Choice<T> choice, {bool selected = true}) → void
Select or unselect a choice
override
toString() String
A string representation of this object.
override
toWidget() Widget
Return a Text widget from toString
inherited
validate() → void
Validate the selection
override

Operators

operator ==(Object other) bool
The equality operator.
inherited