ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMIndexedSceneLayer Class / DefinitionExpression Property

DefinitionExpression Property (CIMIndexedSceneLayer)
Gets or sets the definition expression that can subset the features.
Syntax
public string DefinitionExpression {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 3.0 or higher.
See Also