ArcGIS Pro 2.7 API Reference Guide
SetAnchor Method
Example 

ArcGIS.Desktop.Layouts Namespace > Element Class : SetAnchor Method
Anchor
Sets the anchor position of the element. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public void SetAnchor( 
   Anchor anchor
)
Public Sub SetAnchor( _
   ByVal anchor As Anchor _
) 

Parameters

anchor
Anchor
Exceptions
ExceptionDescription
This method must be called within the lambda passed to QueuedTask.Run.
This element requires its mapview to be active
Remarks
Placement for an element contained in graphics layer requires the mapview be active.
Example
//Change the element's anchor position

//Perform on the worker thread
await QueuedTask.Run(() =>
{
  Anchor elmAnchor = element.GetAnchor();
  elmAnchor = Anchor.CenterPoint;

  element.SetAnchor(elmAnchor); //You don't have to get to set; a shortcut would be: element.SetAnchor(Anchor.CenterPoint);
});
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

Element Class
Element Members