ArcGIS Pro 2.2 API Reference Guide
Expanded Property (CIMBaseLayer)

ArcGIS.Core.CIM Namespace > CIMBaseLayer Class : Expanded Property
Gets and sets whether this layer is expanded in the contents pane.
Syntax
Public Property Expanded As Boolean
public bool Expanded {get; set;}
Requirements

Target Platforms:Windows 10, Windows 8.1, Windows 7

See Also

Reference

CIMBaseLayer Class
CIMBaseLayer Members