Refresh component when RhinoObject changes

Grasshopper
, ,
1

I would like to get all objects on a specific layer. I can do this with the below code, however, the output does not change when elements move in Rhino. The component needs to be manually re-run.

I have tried

RhinoDoc.AddRhinoObject += ObjectAddedEvent;

with

        public void ObjectAddedEvent(object sender, RhinoObjectEventArgs e)
        {
            this.ExpireSolution(true);
        }

However, this refreshes the component when any object changes in Rhino, not just those on my layer.

Should I be using RhinoDoc.AddRhinoObject in a better way?

Full code below:

        protected override void SolveInstance(IGH_DataAccess DA)
        {
            string PointsLayer = "Layer 01";

            var layer_index = Rhino.RhinoDoc.ActiveDoc.Layers.FindByFullPath(PointsLayer, -1);

            Rhino.DocObjects.RhinoObject[] Geom = Rhino.RhinoDoc.ActiveDoc.Objects.FindByLayer(Rhino.RhinoDoc.ActiveDoc.Layers[layer_index]);

            RhinoDoc.AddRhinoObject += ObjectAddedEvent;

            List<Point3d> output = new List<Point3d>();
            foreach (Rhino.DocObjects.RhinoObject G in Geom)
            {
                Point3d TempPoint = new Point3d();
                GH_Convert.ToPoint3d(G, ref TempPoint, GH_Conversion.Both);
                output.Add(TempPoint);
            }

            DA.SetDataList(0, output);

        }


        public void ObjectAddedEvent(object sender, RhinoObjectEventArgs e)
        {
            this.ExpireSolution(true);
        }