ArcGIS Pro 2.7 API Reference Guide
CompositeLayer Class
Members 

ArcGIS.Desktop.Mapping Namespace : CompositeLayer Class
Represents an abstract class for a read-only collection of layers.
Object Model
CompositeLayer ClassLayer ClassCIMDataConnection ClassCIMBaseLayer ClassSpatialReference ClassMap ClassILayerContainer InterfaceEnvelope Class
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Framework.Contracts.PropertyChangedBase
      ArcGIS.Desktop.Mapping.MapMember
         ArcGIS.Desktop.Mapping.Layer
            ArcGIS.Desktop.Mapping.CompositeLayer
               ArcGIS.Desktop.Mapping.CompositeLayerWithTables
               ArcGIS.Desktop.Mapping.DiagramLayer
               ArcGIS.Desktop.Mapping.GroupLayer
               ArcGIS.Desktop.Mapping.MosaicLayer
               ArcGIS.Desktop.Mapping.NitfLayer
               ArcGIS.Desktop.Mapping.ParcelLayer
               ArcGIS.Desktop.Mapping.ServiceCompositeSubLayer
               ArcGIS.Desktop.Mapping.ServiceLayer
               ArcGIS.Desktop.Mapping.SubtypeGroupLayer
               ArcGIS.Desktop.Mapping.TraceNetworkLayer
               ArcGIS.Desktop.Mapping.UtilityNetworkLayer

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

CompositeLayer Members
ArcGIS.Desktop.Mapping Namespace