A Layer is an attribute to IGeoObject objects. With several layers you can group the GeoObjects in a Model. In a ModelView you can select which layers are visible. In a Filter you can select which layers are be pickable The property DisplayOrder affects the order of display or printing if the according feature is enabled in a ModelView or Layout. Layer implements the IShowProperty interface to present ist properties.

[SerializableAttribute]
public class Layer : IShowPropertyImpl, ISerializable, 
	INamedAttribute, ICommandHandler

<SerializableAttribute> _
Public Class Layer _
	Inherits IShowPropertyImpl _
	Implements ISerializable, INamedAttribute, ICommandHandler

[SerializableAttribute]
public ref class Layer : public IShowPropertyImpl, 
	ISerializable, INamedAttribute, ICommandHandler