LFormField<T> class

Creates a single form field.

The builder argument must not be null.

Inheritance
Implementers

Constructors

LFormField({Key key, @required LFormFieldBuilder<T> builder, String name, LFormFieldSetter<T> onSaved, List<LValidator<T>> validators, T initialValue, bool autovalidate = false, bool enabled = true})
Creates a single form field.
const

Properties

autovalidate bool
If true, this form field will validate and update its error text immediately after every change. Otherwise, you must call LFormFieldState.validate to validate. If part of a LForm that auto-validates, this value will be ignored.
final
builder LFormFieldBuilder<T>
Function that returns the widget representing this form field. It is passed the form field state as input, containing the current value and validation state of this field.
final
enabled bool
Whether the form is able to receive user input.
final
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
initialValue → T
An optional value to initialize the form field to, or null otherwise.
final
key Key
Controls how one widget replaces another widget in the tree.
finalinherited
name String
An optional field for serialization of the this field LFormState.serialize
final
onSaved LFormFieldSetter<T>
An optional method to call with the final value when the form is saved via LFormState.save.
final
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
validators List<LValidator<T>>
An optional list of LValidator validators to validates an input. display error message if the input is invalid, or null otherwise.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() LFormFieldState<T>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
inherited
toStringShort() String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) bool
The equality operator.
@nonVirtualinherited