WorldEditor.NZone.EncounterGroup.frmSelectObject.AddObject C# (CSharp) Method

        public void AddObject(object SelectableObject)
        {
            SelectableObjects.Add(SelectableObject);
        }

        private void btnSelectProto_Click(object sender, EventArgs e)
        {
            frmSelectObject sp = new frmSelectObject("Select critter proto for NPC.", "");

            foreach (CritterProto cr in CrProtos)
            {
                sp.AddObject((object)cr);
            }
            sp.ShowDialog();
            if (sp.Selected != 0)
            {
                numProto.Value = sp.Selected;
                if (CurrentNpc != null)
                {
                    CurrentNpc.Proto.Id = sp.Selected;
                }
            }
            RefreshNpcList();
        }