ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Core.Events Namespace / ProjectEventArgs Class / ProjectOpenMode Property

ProjectOpenMode Property
Gets the enumeration associated with the event indicating how the project was opened
Syntax
public ProjectOpenMode ProjectOpenMode {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also