public class ConfigHelper

    {

        public static T GetConfig<T>(string path)

        {

            if (string.IsNullOrEmpty(path))

                return default(T);

            try

            {

                string strConfig = FileHelper.ReadFromFile(path);

                if (string.IsNullOrEmpty(strConfig))

                    return default(T);

                return JsonConvert.DeserializeObject<T>(strConfig);

            }

            catch (Exception)

            {

                return default(T);

            }

        }

        public static bool SaveConfig<T>(string path, T t)

        {

            try

            {

                if (string.IsNullOrEmpty(path) || t == null)

                    return false;

                string strConfig = JsonConvert.SerializeObject(t);

                if (string.IsNullOrEmpty(strConfig))

                    return false;

                if (!FileHelper.WriteToFile(path, strConfig))

                    return false;

                return true;

            }

            catch (Exception)

            {

                return false;

            }

        }

}

    public class FileHelper

    {

        public static string ReadFromFile(string path)

        {

            if (string.IsNullOrEmpty(path) || !File.Exists(path))

                return null;

            try

            {

                using (StreamReader reader = new StreamReader(path, Encoding.UTF8))

                {

                    return reader.ReadToEnd();

                }

            }

            catch (Exception)

            {

                return null;

            }

        }

        public static bool WriteToFile(string path, string content)

        {

            if (string.IsNullOrEmpty(path) || string.IsNullOrEmpty(content))

                return false;

            try

            {

                using (StreamWriter writer = new StreamWriter(path, false, Encoding.UTF8))

                {

                    writer.WriteLine(content);

                }

                return true;

            }

            catch (Exception)

            {

                return false;

            }

        }

}