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

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    IsFlattened Property (CIMBasicFeatureLayer)
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    Gets or sets a value indicating whether the layer is flattened.
    public bool IsFlattened {get; set;}
    Public Property IsFlattened As Boolean
    Move a layer in the 2D group to the 3D Group in a Local Scene
    //The layer in the 2D group to move to the 3D Group in a Local Scene
    var layer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().FirstOrDefault();
    QueuedTask.Run(() =>
      //Get the layer's definition
      var lyrDefn = layer.GetDefinition() as CIMBasicFeatureLayer;
      //setting this property moves the layer to 3D group in a scene
      lyrDefn.IsFlattened = false;
      //Set the definition back to the layer

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also