ArcGIS Pro 2.7 API Reference Guide
PaneCollection Class
Members 

ArcGIS.Desktop.Framework Namespace : PaneCollection Class
Panes collection object. This class contains all active instances of panes as well as supplying the mechanism for creating new instances of panes.
Object Model
PaneCollection ClassPane Class
Syntax
public sealed class PaneCollection : System.Collections.IEnumerable  
Public NotInheritable Class PaneCollection 
   Implements System.Collections.IEnumerable 
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Framework.PaneCollection

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

PaneCollection Members
ArcGIS.Desktop.Framework Namespace