System.Design 1.0.5000.0 2.0.0.0 System.Web.UI.Design.TextControlDesigner The control allows text to be displayed programmatically on a Web page. In a visual designer, when you switch from Source to Design view, the markup source code that describes a control is parsed and a design-time version of the control is created on the design surface. When you switch back to Source view, the design-time control is persisted to the markup source code and edited into the markup for the Web page. The class provides design-time support for the control. The method is called when there is a change to the associated control. Provides design-time support in a visual designer for the Web server control. Constructor The .NET Framework internally constructs a new instance of the class when it creates the associated control or a copy of the control on the design surface. Initializes a new instance of the class. 1.0.5000.0 2.0.0.0