ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMBasicFeatureLayer Class / SelectionColor Property
Example

In This Topic
    SelectionColor Property (CIMBasicFeatureLayer)
    In This Topic
    Gets or sets the selection color. For polygons, this is used as the outline color.
    Syntax
    public CIMColor SelectionColor {get; set;}
    Public Property SelectionColor As CIMColor
    Example
    Change the layer selection color
    var featureLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().FirstOrDefault();
    ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
    {
      // get the CIM definition of the layer
      var layerDef = featureLayer.GetDefinition() as ArcGIS.Core.CIM.CIMBasicFeatureLayer;
      // disable the default symbol
      layerDef.UseSelectionSymbol = false;
      // assign a new color
      layerDef.SelectionColor = ColorFactory.Instance.RedRGB;
      // apply the definition to the layer
      featureLayer.SetDefinition(layerDef);
    
      if (!featureLayer.IsVisible)
        featureLayer.SetVisibility(true);
      //Do a selection
    
      MapView.Active.SelectFeatures(MapView.Active.Extent);
    });
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also