ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Reports.Events Namespace / ReportDataSourceChangedEventArgs Class / DataSource Property

DataSource Property (ReportDataSourceChangedEventArgs)
Gets the new ReportDataSource properties.
Syntax
public ReportDataSource DataSource {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.8 or higher.
See Also