Is there something special I should be doing when trying to create controls dynamically in order to make 'autosize' work properly ?

For example - if I have something like :

            Panel p = new Panel();
            Panel p2 = new Panel();
            Label l=new Label();

            // So we have a label in a panel with a border.
            // And that panel in another panel without a border
            // but that is autosize..


            p.BorderStyle = BorderStyle.Fixed3D;
    //        p.AutoSize = true;
    //        p2.AutoSize = true;

           
            l.Text = "Hello";
            l.AutoSize = true;

            l.BackColor = Color.Red;
            p.BackColor = Color.Blue;
            p2.BackColor = Color.Green;

            p.Controls.Add(l);
            p2.Controls.Add(p);

            p.Top = 40;
            p.Left = 40;
        
            p.AutoSize = true;
            p2.AutoSize = true;
            this.Controls.Add(p2);

(just put in a button click on a blank form)

Running it - you should see the panels are too large for the label..

(Doesn't seem to matter if I set the 'autosize' before or after )

Now - in practice - I've got some very complicated forms generated - with flowlayouts etc - but the Autosizing isn't working properly in similar ways, including not allocating enough space for the borders on some of the contained controls etc..

Any thoughts ?

As an alternative - is there someway to force a resize to a control and all its children ?

(For reference - I had major problems in 6.3 with this too - including having to set the size to something massive adding child controls, and then setting autosize)

Try setting

p.AutoSizeMode = AutoSizeMode.GrowAndShrink;
            p2.AutoSizeMode = AutoSizeMode.GrowAndShrink;

just before setting the AutoSize=true;

Eg :

 Panel p = new Panel();
            Panel p2 = new Panel();
            Label l = new Label();

            // So we have a label in a panel with a border.
            // And that panel in another panel without a border
            // but that is autosize..


            p.BorderStyle = BorderStyle.Fixed3D;
            p.AutoSizeMode = AutoSizeMode.GrowAndShrink;
            p2.AutoSizeMode = AutoSizeMode.GrowAndShrink;
            p.AutoSize = true;
            p2.AutoSize = true;


            l.Text = "Hello";
            l.AutoSize = true;

            l.BackColor = Color.Red;
            p.BackColor = Color.Blue;
            p2.BackColor = Color.Green;

            p.Controls.Add(l);
            p2.Controls.Add(p);

            p.Top = 40;
            p.Left = 40;

            //p.AutoSize = true;
            //p2.AutoSize = true;
            this.Controls.Add(p2);