Supports Design Mode Interface
The interface's only purpose is to “mark” types that we want to work in Design Mode. A type (class) needs to inherit from this interface if it wants to work in Design Mode. That mechanism also allows a client of the model to programmatically discover which classes support Design Mode, which can be useful in certain scenarios.
public interface ISfcSupportsDesignMode
type ISfcSupportsDesignMode = interface
Public Interface ISfcSupportsDesignMode