请问自定义控件中的属性页是怎么设计的？

public class UserControl1 : System.Windows.Forms.UserControl
{
  //有了这句，你就能在属性窗口看见一项“MyText"
  [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
   public string MyText
   {
set{ myText = value; }
get{ return myText}
   }   private string myText = "Hello World";
}