ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / GraphicsLayerExtensions Class / ClearSelection Method
Example Version

ClearSelection Method (GraphicsLayerExtensions)
Clears the current element selection within the GraphicsLayer collection. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public static void ClearSelection( 
   GraphicsLayer graphicsLayer
)

Parameters

graphicsLayer
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Remarks
The map view displaying the graphics layer should be initialized.
Example
Un-Select Graphic elements
var graphicsLayer = MapView.Active.Map.GetLayersAsFlattenedList()
                    .OfType<ArcGIS.Desktop.Mapping.GraphicsLayer>().FirstOrDefault();
if (graphicsLayer == null)
  return;
//unselect the first element in the currently selected elements
var elem = graphicsLayer.GetSelectedElements().FirstOrDefault();
QueuedTask.Run( () => {
  if (elem != null)
    //Unselect one element
    graphicsLayer.UnSelectElement(elem);

  //unselect all elements
  graphicsLayer.UnSelectElements();
  //equivalent to
  graphicsLayer.ClearSelection();
});
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also