ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping.Events Namespace / MapViewRangeChangedEventArgs Class / PreviousRange Property

PreviousRange Property
Gets the previous range for the map view.
Syntax
public RangeExtent PreviousRange {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.3 or higher.
See Also