SelectElement Method (GraphicsLayerExtensions)

In This Topic

Select the element within the GraphicsLayer collection. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public static void SelectElement( 
   GraphicsLayer graphicsLayer,
   Element element
)

Public Shared Sub SelectElement( _
   ByVal graphicsLayer As GraphicsLayer, _
   ByVal element As Element _
)

Parameters

graphicsLayer: The graphics layer being extended
element: The element to select. Cannot be null

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.ArgumentNullException	Value cannot be null: element

Remarks

The map view displaying the graphics layer should be initialized.

Example

Select Graphic Elements

var graphicsLayer = MapView.Active.Map.GetLayersAsFlattenedList()
                    .OfType<ArcGIS.Desktop.Mapping.GraphicsLayer>().FirstOrDefault();
if (graphicsLayer == null)
  return;
var elements = graphicsLayer.GetElementsAsFlattenedList()
                    .Where(e => e.Name.StartsWith("Text"));
QueuedTask.Run(() =>
{
  graphicsLayer.SelectElements(elements);
  //or select one element
  graphicsLayer.SelectElement(elements.FirstOrDefault());
});

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

GraphicsLayerExtensions Class
GraphicsLayerExtensions Members

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