ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / Layout Class / SetPage Method

SetPage Method (Layout)
Overload List
OverloadDescription
Applies the changes made to a modified CIMPage to the layout. This method must be called on the MCT. Use QueuedTask.Run.  
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also