ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / GraphicsLayerExtensions Class / FindElement Method
The graphics layer being extended
The name of the element to find. Cannot be null
Example Version

FindElement Method (GraphicsLayerExtensions)
Finds the element recursively with the given name within the GraphicsLayer collection. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public static Element FindElement( 
   GraphicsLayer graphicsLayer,
   string elementName
)

Parameters

graphicsLayer
The graphics layer being extended
elementName
The name of the element to find. Cannot be null

Return Value

The ArcGIS.Desktop.Layouts.Element or null if it is not found
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Value cannot be null: elementName
Remarks
Find recurses nested groups to find the given element.
The map view displaying the graphics layer should be initialized.
Example
Modify symbology of a Graphic Element
//within a queued Task
//get the first line element in the layer
var ge = graphicsLayer.FindElement("Line 10") as GraphicElement;
var graphic = ge.GetGraphic();
if (graphic is CIMLineGraphic lineGraphic)
{
  //change its symbol
  lineGraphic.Symbol =
   SymbolFactory.Instance.ConstructLineSymbol(
     SymbolFactory.Instance.ConstructStroke(
 ColorFactory.Instance.BlueRGB, 2, SimpleLineStyle.DashDot)).MakeSymbolReference();
  //apply the change
  ge.SetGraphic(lineGraphic);
}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also