ArcGIS Pro 2.8 API Reference Guide
AnnotationSubLayer Class
Members 

ArcGIS.Desktop.Mapping Namespace : AnnotationSubLayer Class
Represents sublayer within an annotation layer.
Object Model
AnnotationSubLayer 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.AnnotationSubLayer

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

AnnotationSubLayer Members
ArcGIS.Desktop.Mapping Namespace