On creation of a Form, I am setting MyPanel to not be visible:

constructor MyForm.Create(AOwner : TComponent);
begin
  inherited Create(AOwner);

  TopPanel.Align := alTop; // parented to MainPanel
  MyPanel.Align := alTop; // parented to MainPanel

  MainPanel.AutoSize := True;
  AutoSize := True;

  if foo then
  begin
    MyPanel.Visible := False;

    // force client height to adjust and catch the not visible panel
    Visible := True;
    Visible := False;
  end;
end;

Without the Visible toggling, the Form’s ClientHeight/Height acts as though MyPanel is still visible, including MyPanel’s Height. Once I show the Form or toggle the Visible property, the ClientHeight will adjust to not include MyPanel’s height. I would like to know if there is a better way to get the height to update without toggling the Visible property, as I am storing the ClientHeight on creation and it is not accurate by the time the form is shown.