DropDownField class

Inheritance

Constructors

Properties

autovalidateMode AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
builder FormFieldBuilder<String>
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.
finalinherited
controller TextEditingController?
getter/setter pair
enabled bool
Whether the form is able to receive user input.
final
forceErrorText String?
An optional property that forces the FormFieldState into an error state by directly setting the FormFieldState.errorText property without running the validator function.
finalinherited
hashCode int
The hash code for this object.
no setterinherited
hintStyle TextStyle
final
hintText String?
final
icon Widget?
final
initialValue String?
An optional value to initialize the form field to, or null otherwise.
finalinherited
inputFormatters List<TextInputFormatter>?
final
items List?
final
itemsVisibleInDropdown int
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelStyle TextStyle
final
labelText String?
final
onSaved FormFieldSetter<String>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
onValueChanged ValueChanged?
final
required bool
final
restorationId String?
Restoration ID to save and restore the state of the form field.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
setter FormFieldSetter?
final
strict bool
final
textStyle TextStyle
final
validator FormFieldValidator<String>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
finalinherited
value → dynamic
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() DropDownFieldState
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.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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.
inherited