public void dwgopen()
        {
            try
            {
                Kcs_ui.MessageNoConfirm(CurrentElement.Element.GetAsString(DbAttributeInstance.NAME));

                if (Kcs_draft.DwgCurrent())
                {
                    string title = "도면저장";
                    string titleMsg = "현재 도면을 저장하시겠습니까?";
                    if (Kcs_ui.AnswerReq(title, titleMsg) == Kcs_util.Yes())
                    {
                        try
                        {
                            Kcs_util.CleanWorkspace();
                            Kcs_draft.DwgPurge();
                            Kcs_draft.DwgPack();
                            Kcs_draft.DwgSave();
                        }
                        catch (MarVitesseException e)
                        {
                            Kcs_ui.MessageNoConfirm(e.ToString());
                        }
                    }
                }


                Kcs_draft.DwgClose();
                //사실 DWGOPEN은 SHEE를 여는것이다.
                Kcs_draft.DwgOpen(CurrentElement.Element.GetAsString(DbAttributeInstance.NAME));
                System.GC.Collect();
                System.GC.WaitForFullGCComplete();
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }