TreeNode<T> class

A node in a tree structure.

Each TreeNode represents an item in a hierarchical data structure. It contains information about its state (expanded, selected, etc.), its children, and its parent.

The type parameter T represents the type of the value associated with this node.

Constructors

TreeNode.new({required String label, bool isExpanded = false, bool isSelected = false, bool isPartiallySelected = false, IconData? icon, List<TreeNode<T>>? children, TreeNode<T>? parent, bool hidden = false, int originalIndex = 0, T? value})
Creates a TreeNode.

Properties

children → List<TreeNode<T>>
The list of child nodes for this node.
final
hashCode → int
The hash code for this object.
no setterinherited
hidden ↔ bool
Whether this node is hidden in the tree view.
getter/setter pair
icon → IconData?
The icon to display next to this node.
final
isExpanded ↔ bool
Whether this node is currently expanded to show its children.
getter/setter pair
isPartiallySelected ↔ bool
Whether this node is partially selected (some children selected).
getter/setter pair
isSelected ↔ bool
Whether this node is currently selected.
getter/setter pair
label → String
The label text displayed for this node.
final
originalIndex ↔ int
The original index of this node in its parent's children list.
getter/setter pair
parent ↔ TreeNode<T>?
The parent node of this node, or null if this is a root node.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → T?
An optional value associated with this node.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited