All leaf nodes (flat)
Current search text (for highlighting)
Initial expansion applied when ExpandedIDs is null: 'first-level' (default) expands only the root branches, 'all' expands every branch (small pickers where the whole catalog should be visible), 'none' starts fully collapsed.
Error message if load failed
Currently focused node (for keyboard navigation)
Has data been loaded
Loading state
Root nodes of the tree
Currently selected nodes
Emitted when selection changes (convenience event with just the selected nodes)
Clear cache (call before Refresh if you want fresh data)
Clear selection
Collapse all nodes
Expand all nodes
Filter nodes by search text
Get container classes
Get selected IDs
Get currently selected nodes
A callback method that performs custom clean-up, invoked immediately before a directive, pipe, or service instance is destroyed.
A callback method that is invoked immediately after the default change detector has checked the directive's data-bound properties for the first time, and before any of the view or content children have been checked. It is invoked only once when the directive is instantiated.
Reload tree data (forces fresh load from database)
Programmatically select node(s)
Whether to emit SelectionChange event (default: true). Set to false during sync operations to avoid unnecessary events.
All branch nodes (flat)