public class DataProvider: IDataProvider
    {
        private const string ConnectionStringName = "Veles.BloodPressure.LinqToSqlDal.Properties.Settings.BloodPressureConnectionString";
        private static BloodPressureDataContext BloodPressure = new BloodPressureDataContext(ConfigurationManager.ConnectionStrings[ConnectionStringName].ConnectionString);

        public void UpdateUser(UserDto userDto)
        {
            var user = GetUserEntity(userDto);
            BloodPressure.Users.Attach(user);
            BloodPressure.SubmitChanges();
        }

        public static User GetUserEntity(UserDto dto)
        {
            var user = new User
            {
                Address = dto.Address
                DateOfBirth = dto.DateOfBirth,
                Email = dto.Email,
                FirstName = dto.FirstName,
                UserId = dto.UserId,
                LastName = dto.LastName,
                Login = dto.Login,
                Password = dto.Password,
                Phone1 = dto.Phone1,
                Phone2 = dto.Phone2,
                Note = dto.Note
            };
            return user;
        }
}