[Overview][Constants][Types][Classes][Procedures and functions][Index] Reference for unit 'ComCtrls' (#lcl)

TCustomTreeView.OnExpanding

OnExpanding - specialized event handler while a TreeView is being expanded.

Declaration

Source position: comctrls.pp line 3627

protected property TCustomTreeView.OnExpanding : TTVExpandingEvent
  read FOnExpanding
  write FOnExpanding;

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