Cascader class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- Cascader
Constructors
-
Cascader({Key? key, bool allowClear = true, bool autoFocus = false, bool bordered = true, bool changeOnSelect = false, List<
String> defaultValue = const [], bool disabled = false, Widget displayBuilder(String label, List<CascaderOption> selectedOptions)?, Widget dropdownBuilder( )?, Widget? expandIcon, CascaderTrigger expandTrigger = CascaderTrigger.click, Map? fieldNames, Widget getPopupContainer()?, void loadData(List<CascaderOption> selectedOptions)?, int? maxTagCount, Widget? maxTagPlaceholder, Widget notFoundContent = const Text('Not Found'), bool? open, List<CascaderOption> options = const [], String placeholder = '请选择', Alignment placement = Alignment.bottomLeft, ShowSearch? showSearch, CascaderSize size = CascaderSize.middle, CascaderStatus? status, Widget? suffixIcon, Widget tagBuilder()?, List<String> ? value, void onChange(String value, List<CascaderOption> selectedOptions)?, void onPopupVisibleChange(String value)?, bool? multiple, String? searchValue, void onSearch(String search)?}) -
const
Properties
- allowClear → bool
-
final
- autoFocus → bool
-
final
- bordered → bool
-
final
- changeOnSelect → bool
-
final
-
defaultValue
→ List<
String> -
final
- disabled → bool
-
final
-
displayBuilder
→ (Widget Function(String label, List<
CascaderOption> selectedOptions)?) -
final
- dropdownBuilder → (Widget Function(?) )
-
final
- expandIcon → Widget?
-
final
- expandTrigger → CascaderTrigger
-
final
- fieldNames → Map?
-
final
- getPopupContainer → (Widget Function()?)
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
loadData
→ (void Function(List<
CascaderOption> selectedOptions)?) -
final
- maxTagCount → int?
-
final
- maxTagPlaceholder → Widget?
-
final
- multiple → bool?
-
final
- notFoundContent → Widget
-
final
-
onChange
→ (void Function(String value, List<
CascaderOption> selectedOptions)?) -
final
- onPopupVisibleChange → (void Function(String value)?)
-
final
- onSearch → (void Function(String search)?)
-
final
- open → bool?
-
final
-
options
→ List<
CascaderOption> -
final
- placeholder → String
-
final
- placement → Alignment
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- searchValue → String?
-
final
- showSearch → ShowSearch?
-
final
- size → CascaderSize
-
final
- status → CascaderStatus?
-
final
- suffixIcon → Widget?
-
final
- tagBuilder → (Widget Function()?)
-
final
-
value
→ List<
String> ? -
final
Methods
-
blur(
) → void -
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< Cascader> -
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
-
focus(
) → void -
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