ArcGIS Pro 2.6 API Reference Guide
ExtentChanged Event

ArcGIS.Desktop.Mapping.Controls Namespace > MapControl Class : ExtentChanged Event
Occurs when extent changes.
Syntax
public event EventHandler ExtentChanged
Public Event ExtentChanged As EventHandler
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

MapControl Class
MapControl Members