FormDropdown<T extends Object> class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- FormField<
T> - FormDropdown
Constructors
- FormDropdown({Key? key, T? initialValue, required List items, ValueChanged? onSelected, Decoration? decoration, Color? borderColor, TextStyle? textStyle, bool keyIsValue = true})
Properties
- autovalidateMode → AutovalidateMode
-
Used to enable/disable this form field auto validation and update its
error text.
finalinherited
-
builder
→ FormFieldBuilder<
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.
finalinherited
- enabled → bool
-
Whether the form is able to receive user input.
finalinherited
- 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
- initialValue → T?
-
An optional value to initialize the form field to, or null otherwise.
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onSaved
→ FormFieldSetter<
T> ? -
An optional method to call with the final value when the form is saved via
FormState.save.
finalinherited
- 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
-
validator
→ FormFieldValidator<
T> ? -
An optional method that validates an input. Returns an error string to
display if the input is invalid, or null otherwise.
finalinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → FormFieldState< 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.
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, int wrapWidth = 65}) → 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