SelectElements Method (GraphicsLayerExtensions)

In This Topic

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

Syntax

C#
Visual Basic (Declaration)

public static void SelectElements( 
   GraphicsLayer graphicsLayer,
   IEnumerable<Element> elements
)

Public Shared Sub SelectElements( _
   ByVal graphicsLayer As GraphicsLayer, _
   Optional ByVal elements As IEnumerable(Of Element) _
)

Parameters

graphicsLayer: The graphics layer being extended
elements: The elements to select. If null then all elements are selected

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Remarks

If a child of a group element is provided in the list of elements to be selected in addition to its parent then the parent is the element selected.
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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