System.Windows.Forms 1.0.5000.0 2.0.0.0 System.Enum System.Runtime.InteropServices.ComVisible(true) This enumeration is used by . Specifies how and if a drag-and-drop operation should continue. Field System.Windows.Forms.DragAction The operation is canceled with no drop message. 1.0.5000.0 2.0.0.0 Field System.Windows.Forms.DragAction The operation will continue. 1.0.5000.0 2.0.0.0 Field System.Windows.Forms.DragAction The operation will stop with a drop. 1.0.5000.0 2.0.0.0