ObjectEditor.frmMain.cloneSelectedObjectToolStripMenuItem_Click C# (CSharp) Method

        private void cloneSelectedObjectToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ArrayList Arr = (ArrayList)lstProtos.SelectedObjects;
            List<ItemProto> Prots = new List<ItemProto>((ItemProto[])Arr.ToArray(typeof(ItemProto)));
            if (Prots.Count > 1)
            {
                Message.Show("Can't clone multiple objects at the same time, select one proto and try again!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                changeStatus("Unable to clone multiple object(s)");
            }
            else if (Prots.Count == 0)
            {
                Message.Show("No proto selected!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                ushort suggestedPid = 0;
                for (int i = Prots[0].ProtoId; i < ushort.MaxValue; i++)
                {
                    if (Data.ItemPid.ContainsValue(i))
                        continue;
                    if (isProtoIdLoaded(i))
                        continue;
                    suggestedPid = (ushort)i;
                    break;
                }

                frmClone frmClone = new frmClone(Prots[0], suggestedPid);
                frmClone.ShowDialog();
                if (!frmClone.clickedOk)
                    return;

                if (isProtoIdLoaded(frmClone.protoId))
                {
                    Message.Show("A proto with that id is already loaded!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }

                ItemProto newProto = DeepCopier.DeepCopy(Prots[0]);
                newProto.ProtoId = frmClone.protoId;
                LoadedProtos.Add(newProto);
                lstProtos.AddObject(newProto);
                lstProtos.SelectedObject = newProto;
                lstProtos.EnsureModelVisible(newProto);
                SetNewProto(newProto);
                changeStatus(string.Format("Cloned {0} ({1}) into a new object with PID {2}", Prots[0].Name, Prots[0].ProtoId, frmClone.protoId));
            }
        }