ArcGIS Pro 2.8 API Reference Guide
SendToBack Method (Layout)

ArcGIS.Desktop.Layouts Namespace > Layout Class : SendToBack Method
Overload List
OverloadDescription
Send the element to the back of its parent's element collection. This method must be called on the MCT. Use QueuedTask.Run.  
Send the elements to the back of their parent's element collection. This method must be called on the MCT. Use QueuedTask.Run.  
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

Layout Class
Layout Members