Right-click only to select a node in VirtualTreeView?

Question

I need to select a node of virtualstringtree by only a right click, and left click should not select the node. But I could not find a solution. Turning selection on, will also allow to left click and select a node. Is this possible with the virtualstringtree?

Answer 1

To enable select on right-click set toRightClickSelect in SelectionOptions:

VST1.TreeOptions.SelectionOptions := VST1.TreeOptions.SelectionOptions + [toRightClickSelect];

To prevent selection on mouse left-click, one option is to use Abort in OnMouseDown event:

procedure TForm1.VST1MouseDown(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  if Button = mbLeft then // only Abort if mouse left-button is pressed down
    abort;
end;