How do I change the type of control that is used in a .NET PropertyGrid

[Editor(typeof(MultilineStringEditor), typeof(UITypeEditor))]
        public override string Text
        {
            get { return _string; }
            set { _string = value; }
        }

[Editor("System.Windows.Forms.Design.StringArrayEditor,
         System.Design, Version=2.0.0.0,
         Culture=neutral,
         PublicKeyToken=b03f5f7f11d50a3a",
         typeof(UITypeEditor))]
        public string[] Lines
        {
            get { return _lines; }
            set { _lines = value; }
        }