Originariamente inviato da chipdb
codice:
object textBox = Activator.CreateInstance(Type.GetType("System.TextBox"));
object label = Activator.CreateInstance(Type.GetType("System.Label"));
TextBox e Label sono di System.Windows.Forms
quindi

codice:
object textBox = Activator.CreateInstance(Type.GetType("System.Windows.Forms.TextBox"));
object label = Activator.CreateInstance(Type.GetType("System.Windows.Forms.Label"));