System.Design 2.0.0.0 System.Enum System.Flags To be added. Indicates which features are enabled with the method of a designer. Field 2.0.0.0 System.Web.UI.Design.ViewFlags Enables painting events for displaying a custom control at design time. Field 2.0.0.0 System.Web.UI.Design.ViewFlags Postpones all events until after the control is completely loaded. Field 2.0.0.0 System.Web.UI.Design.ViewFlags Enables template editing at design time.