CascadeSelectWidget<T> class

级联选择框

Inheritance

Constructors

CascadeSelectWidget({Key? key, required int columnNum, required Future<List<T>> buildPickData(int columnIndex, int lastColumnIndex), PickResultCallback<T>? resultCallback, required BuildItem<T> buildItem, List<int>? initIndex, PickerStyle? pickerStyle})

Properties

buildItem → BuildItem<T>
子item构造
final
buildPickData → Future<List<T>> Function(int columnIndex, int lastColumnIndex)
构造单列数据
final
columnNum → int
有几列
final
hashCode → int
The hash code for this object.
no setterinherited
initIndex → List<int>?
每列初始化的位置
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
pickerStyle ↔ PickerStyle?
样式定制
getter/setter pair
resultCallback → PickResultCallback<T>?
结果回调
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<CascadeSelectWidget>
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