ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / LayoutView Class / Refresh Method
Example Version

Refresh Method (LayoutView)
Force the layout view to redraw. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public void Refresh()
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Example
LayoutView_Refresh
//Refresh the layout view.

//Process on worker thread
await QueuedTask.Run(() => layoutView.Refresh());
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also