ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / Envelope Class / Extent Property
Version

Extent Property (Envelope)
Gets the minimum enclosing envelope of this instance. Returns null if this geometry has IsEmpty = true.
Syntax
public override Envelope Extent {get;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also