NiceTreeGrid<T> class

Hierarchical data grid combining NiceTreeView and NiceDataGrid.

Supports flat data with keyField/parentKeyField or pre-nested nodes.

NiceTreeGrid<Employee>(
  roots: employeeTree,
  columns: [
    NiceTreeGridColumn(title: 'Name', valueBuilder: (e, _) => Text(e.name)),
    NiceTreeGridColumn(title: 'Role', valueBuilder: (e, _) => Text(e.role)),
  ],
)
Inheritance
Available extensions

Constructors

NiceTreeGrid({Key? key, required List<NiceTreeGridNode<T>> roots, required List<NiceTreeGridColumn<T>> columns, Set<String>? expandedKeys, void onExpandedChange(Set<String> keys)?, bool defaultExpandAll = false, double indentStep = 24, double rowHeight = 44, bool sortable = true, bool selectable = false, Set<String>? selectedKeys, void onSelectionChange(Set<String> keys)?, bool searchable = false, bool searchFilter(T item, String query)?, void onRowTap(NiceTreeGridNode<T> node)?, bool striped = false, bool compact = false, bool loading = false, String? emptyMessage, bool showHeader = true})
const

Properties

columns → List<NiceTreeGridColumn<T>>
final
compact → bool
final
defaultExpandAll → bool
final
emptyMessage → String?
final
expandedKeys → Set<String>?
final
hashCode → int
The hash code for this object.
no setterinherited
indentStep → double
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
loading → bool
final
onExpandedChange → void Function(Set<String> keys)?
final
onRowTap → void Function(NiceTreeGridNode<T> node)?
final
onSelectionChange → void Function(Set<String> keys)?
final
roots → List<NiceTreeGridNode<T>>
final
rowHeight → double
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
searchable → bool
final
searchFilter → bool Function(T item, String query)?
final
selectable → bool
final
selectedKeys → Set<String>?
final
showHeader → bool
final
sortable → bool
final
striped → bool
final

Methods

asFocusable({FocusNode? focusNode, bool autofocus = false}) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as focusable.
asSemanticButton({String? label, VoidCallback? onTap}) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as a button for screen readers.
asSemanticHeading(String label) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as a heading for screen readers.
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<NiceTreeGrid<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
excludeFromSemantics() → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Exclude this widget from the semantic tree.
mergeSemantics() → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Merge semantics of child widgets.
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
withSemanticLabel(String label) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Add a semantic label to this widget.

Operators

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