c# 레지스트리를 이용한 DataTable 복사 클래스

public static class GridrCopyHelper
    { 
        private static string RegPath = $"Software\\CHA_MES\\GridrCopy";
         

        public static string DataTableToJsonReg(this DataTable dataTable)
        {
            string json = JsonConvert.SerializeObject(dataTable);
            SaveGridToRegistry(json);
            return json;
        }

        public static DataTable JsonToDataTableReg(this string json)
        {
            DataTable dataTable = JsonConvert.DeserializeObject<DataTable>(json);
            return dataTable;
        }



        private static void SaveGridToRegistry(string json)
        {
            try
            {
                RegistryKey key = Registry.CurrentUser.CreateSubKey(RegPath);
                key.SetValue(Environment.MachineName, json);
                key.Close();
            }
            catch (Exception ex)
            {

            }
        }

        public static DataTable LoadGridFromRegistry()
        {
            try
            {
                // 레지스트리에서 값 읽기
                RegistryKey key = Registry.CurrentUser.OpenSubKey(RegPath);
                if (key != null)
                {
                    string jsonString = key.GetValue(Environment.MachineName) as string;
                    key.Close();

                    return JsonToDataTableReg(jsonString);
                }

                return null;
            }
            catch (Exception ex)
            {
                return null;
            }
            finally
            {

            }
        }
    }