I want to center this panel, even when the screen is maximized, I want it to stay centered. And not as it is.
You can also do via code:
Knowing that the center of the Container is half its width .Width / 2 and half its height .Heigth / 2
control.Top = (Container.Heigth / 2) - (control.Heigth - 2);
control.Left = (Container.Width / 2) - (control.width - 2);
Note: Container is nothing more than your container.