Comments by GSylvain55 (Top 3 by date)

I understand, but I try it and not working.
My buttons are in 3 panels.
Does that change anything ?
I change the modifier to public for panels.

C#Copy Code

foreach (var c in Controls)    {    //if (btn.GetType() == typeof(Button btn))      if (c is Button btn)         {           ElipseControl el = new ElipseControl();           el.TargetControl = (Control) btn;           el.CornerRadius = 20;         }

Yes, I understand. But can you write a symple code to give me a direction. I've been trying for 3 days.
thank you very much !