TPanel and AutoSize problem (Delphi 11)

[Hafedh TRIMECHE 1]

AutoSize has not effect on a TPanel component. When set to True, the width is kept unchanged.

[Uwe Raabe 2057]

Works perfectly with a simple test program. Probably some settings on your side. Can you attach a small example so that we can see a bit more?

[Stano 143]

It also depends on where you placed the panel. And what neighbors I have. With what settings.

[Hafedh TRIMECHE 1]

object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 441
  ClientWidth = 624
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -12
  Font.Name = 'Segoe UI'
  Font.Style = []
  PixelsPerInch = 96
  TextHeight = 15
  object Panel1: TPanel
    Left = 96
    Top = 32
    Width = 185
    Height = 41
    AutoSize = True
    Caption = 'Panel1'
    TabOrder = 0
  end
end

 

[Uwe Raabe 2057]

And to what controls are you expecting the panel to adjust its size?

Or more general, what do you think what AutoSize does?

[Hafedh TRIMECHE 1]

When a Panel is empty (no controls) it would adjust its size to the text width as it is done when using a TLabel.

[Uwe Raabe 2057]

Setting AutoSize of a panel to true makes the panel adjust its size so that all contained controls are still visible, but nothing more. It takes AdjustWithMargins of the controls into account. The panel Align value takes precedence over the AutoSize.

[Stano 143]

30 minutes ago, Hafedh TRIMECHE said:

When a Panel is empty (no controls) it would adjust its size to the text width as it is done when using a TLabel.

This is what TAdvPanel does

[FreeDelphiPascal 19]

If you put Panel1 inside the Panel2 (both autosize:= true) and you create some dynamic buttons in Panel1, the autosize feature will fail.