Documentation for this section has not yet been entered.
The ContainerControlDesigner.FrameCaption string is the caption that is displayed in the frame around the editable region of the control on the design surface.
The default caption for a System.Web.UI.Design.ContainerControlDesigner frame is the ControlDesigner.ID property of the designer instance. This is typically the same as the run-time System.Web.UI.Control.ID property of the control.