ArcGIS Pro 2.7 API Reference Guide
PreviousID Property

ArcGIS.Desktop.Framework.Events Namespace > ToolEventArgs Class : PreviousID Property
Gets the DAML ID of the previously active tool.
Syntax
public string PreviousID {get;}
Public ReadOnly Property PreviousID As String
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

ToolEventArgs Class
ToolEventArgs Members