System.Windows.Forms 1.0.5000.0 2.0.0.0 System.Enum This enumeration is used by . is used when selecting objects or during drag-and-drop operations. Specifies the frame style of the selected control. Field System.Windows.Forms.FrameStyle A thin, dashed border. 1.0.5000.0 2.0.0.0 Field System.Windows.Forms.FrameStyle A thick, solid border. 1.0.5000.0 2.0.0.0