No selection

A A-1 A-2 A-2.1 A-2.2 A-2.3 A-3

Selection

A A-1 A-2 A-2.1 A-2.2 A-2.3 A-3

Pre-expanded node, ng-container syntax

A is {{expanded1 ? "expanded" : "collapsed"}}. B B.1 B.2 C D

Pre-expanded node, [(clrExpanded)] syntax

A is {{expanded2 ? "expanded" : "collapsed"}}. B B.1 B.2 C D