public async Task<int> UpdateUserRoleAndStatus(CompetentAuthorityUser user, Role role, UserStatus status)
        {
            user.UpdateUserStatus(status.ToDomainEnumeration<Domain.User.UserStatus>());
            user.UpdateRole(role);

            return await context.SaveChangesAsync();
        }

 public ChatListSubItem()
 {
     this.status = UserStatus.Online;
     this.displayName = "displayName";
     this.nicName = "nicName";
     this.personalMsg = "Personal Message ...";
 }

 /// <summary>
 /// Initializes a new instance of the <see cref="User" /> class.
 /// Default constructor.
 /// </summary>
 public User()
 {
     this.personData = new Person();
     this.priceUAH = 0;
     this.priceUSD = 0;
     this.status = UserStatus.NotLogged;
 }

        public static List<User> GetUserDetails(UserStatus status)
        {
            List<User> Users = new List<User>();

            using (sqlDBConnection = new SqlConnection(ConfigurationManager.ConnectionStrings[Connection.ConnectionName].ConnectionString))
            {
                StringBuilder sqlstmt = new StringBuilder("select id,username,password,firstname,lastname,address,contactnumber,dateofbirth,emailid,securityquestion,answer,addressproof,photoidentity,status,rewardpoints from [dbo].[User] where status = @status");
                //sqlstmt.Append(Convert.ToString(userid));
                SqlCommand myCommand = new SqlCommand(sqlstmt.ToString(), sqlDBConnection);
                myCommand.CommandType = CommandType.Text;
                myCommand.Parameters.AddWithValue("@status", (int)status);

                sqlDBConnection.Open();
                using (SqlDataReader myReader = myCommand.ExecuteReader())
                {
                    User user;
                    while (myReader.Read())
                    {
                        user = FillDataRecord(myReader);
                        Users.Add(user);
                    }
                    myReader.Close();
                }
                sqlDBConnection.Close();
            }
            return Users;
        }

 public CompetentAuthorityUser(string userId, Guid competentAuthorityId, UserStatus userStatus, Role role)
 {
     UserId = userId;
     CompetentAuthorityId = competentAuthorityId;
     UserStatus = userStatus;
     Role = role;
 }

        /// <summary>
        /// Convert UserStatus to string status name.
        /// </summary>
        /// <param name="status">Enum UserStatus.</param>
        /// <returns>Status name.</returns>
        public static String ToString(UserStatus status)
        {
            String statusName = String.Empty;
            switch (status)
            {
                case UserStatus.Offline:
                    {
                        statusName = "offline";
                    }
                    break;
                case UserStatus.Online:
                    {
                        statusName = "online";
                    }
                    break;
                case UserStatus.AtHome:
                    {
                        statusName = "at home";
                    }
                    break;
                case UserStatus.AtWork:
                    {
                        statusName = "at work";
                    }
                    break;
                case UserStatus.Busy:
                    {
                        statusName = "busy";
                    }
                    break;
            }

            return statusName;
        }

 /// <summary>
 /// Set new status message.
 /// </summary>
 /// <param name="userID">User identificator.</param>
 /// <param name="message">Message content.</param>
 /// <param name="status">Type of status.</param>
 public static void SetStatusMessage(Guid userID, String message, UserStatus status)
 {
     using (SocialNetworkDBEntities record = new SocialNetworkDBEntities())
     {
         record.spInsStatus(userID, message, (Int32)status);
     }
 }

 public User(int uid, String username, String email, UserStatus status)
 {
     Username = username;
     Email = email;
     UID = uid;
     Status = status;
 }

        public void SetUserStatus(UserStatus status) {
             

            logger.debug("set status {0} to user {1}", status, FullName);
            switch(user.Constructor) {
                case Constructor.userEmpty:
                    break;
                case Constructor.userSelf:
                    ((UserSelfConstructor) user).status = status;
                    break;
                case Constructor.userContact:
                    ((UserContactConstructor) user).status = status;
                    break;
                case Constructor.userRequest:
                    ((UserRequestConstructor) user).status = status;
                    break;
                case Constructor.userForeign:
                    ((UserForeignConstructor) user).status = status;
                    break;
                case Constructor.userDeleted:
                    break;
                default:
                    throw new InvalidDataException("invalid constructor");   
            }

            OnPropertyChanged("Status");
        }

        public SetUserStatusStatement(string userName, UserStatus status)
        {
            if (String.IsNullOrEmpty(userName))
                throw new ArgumentNullException("userName");

            UserName = userName;
            Status = status;
        }

		public User(string username, string password, UserAuthorization authorization, UserStatus status) {
			this._mongoServer = MyMongoDB.GetServer();

			this._username = username;
			this._password = password;
			this._authorization = authorization;
			this._status = status;
		}

 /// <summary>
 /// 更新用户状态
 /// </summary>
 /// <param name="sysNo">用户编号</param>
 /// <param name="status">用户状态</param>
 /// <returns></returns>
 public static bool UpdateStatus(int sysNo, UserStatus status)
 {
     DataCommand cmd = DataCommandManager.GetDataCommand("Users_UpdateStatus");
     cmd.SetParameterValue("@Status", (int)status);
     cmd.SetParameterValue("@SysNo", sysNo);
     cmd.ExecuteNonQuery();
     return true;
 }

        public void LockUser()
        {
            Assert.DoesNotThrow(() => QueryContext.SetUserStatus("tester", UserStatus.Locked));

            UserStatus status = new UserStatus();
            Assert.DoesNotThrow(() => status = QueryContext.GetUserStatus("tester"));
            Assert.AreEqual(UserStatus.Locked, status);
        }

 public User()
 {
     this.CreatedAt = DateTime.Now;
     this.ID = Guid.NewGuid();
     this.status = UserStatus.Pending;
     this.Logs = new List<UserActivityLog>();
     this.MailerLogs = new List<UserMailerLog>();
 }

        private void CreateUser(UserGender gender, UserStatus status)
        {
            ((App)App.Current).Client.CreateUserAsync((user, callbackParams) =>
            {
                Utilities.HandleAsyncResults(user, callbackParams, () => { this.UserCreated(user); }, "Create user failed. Please try again.");

            }, this.Name.Text, this.Password.Password, gender: gender, age: this.GetAge(),
            email: this.Email.Text, status: status);
        }

 public MyUser(int _userId, String _username, String _name, String _contactno, UserType _usertype, UserStatus _status)
 {
     this.userId=_userId;
     this.username = _username;
     this.status = _status;
     this.name = _name;
     this.contactNo = _contactno;
     this.usertype = _usertype;
 }

 public MsgCenterTreeNode(Staff staff, bool isMark)
 {
     this.viewModel.AddEventListenerHandler();
     this.InitializeComponent();
     this.staff = staff;
     this.status = UserStatus.Online;
     this.StaffIsMark = isMark;
     base.MouseLeftButtonUp += new MouseButtonEventHandler(this.StaffMsgCenterTreeNode_MouseLeftButtonUp);
     this.UpdateInfoStaff();
 }

		public User(int userId, string name, string @namespace)
		{
			if(string.IsNullOrWhiteSpace(name))
				throw new ArgumentNullException("name");

			_userId = userId;
			this.Name = _fullName = name.Trim();
			this.Namespace = @namespace;
			_status = UserStatus.Unapproved;
			_createdTime = DateTime.Now;
		}

        public OrganisationUser(Guid userId, Guid organisationId, UserStatus userStatus)
        {
            UserId = userId.ToString();
            OrganisationId = organisationId;
            UserStatus = userStatus;

            if (userStatus == UserStatus.Pending)
            {
                // Raise a domain event indicating that a user's request to join an organisation is pending.
                RaiseEvent(new OrganisationUserRequestEvent(this.OrganisationId, userId));
            }
        }

        public string CreateUser(string email, string passwordHash, string salt, UserStatus status = UserStatus.Signup)
        {
            var user = new User
            {
                Email = email,
                PasswordHash = passwordHash,
                Salt = salt,
                Status = (int) status
            };

            return CreateUser(user);
        }