A directive which manages the expanded state of the TreeView. (see example).
string | (context: TreeItem) => any
Defines the item key that will be stored in the
boolean | FilterExpandSettings
Whether or not to auto-expand the nodes leading from the root node to each filter result.
To fine-tune this behavior, pass a
FilterExpandSettings object to this input.
Defines the collection that will store the expanded keys.
Fires when the
expandedKeys collection was updated.