The Literal control allows a text string to be used as a control on a Web page.
In a visual designer, when you switch from Source to Design view, the markup source code that describes a Literal 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 LiteralDesigner class provides design-time support for the Literal control.
The OnComponentChanged method is called when there is a design-time change to the associated Literal control.