/// <summary>
        /// Method enables adding employee to the database.
        /// </summary>
        public void AddEmployee(object sender, DoWorkEventArgs e)
        {
            try
            {
                using (var conn = new SqlConnection(ConfigurationManager.ConnectionStrings["con"].ToString()))
                {
                    var cmd = new SqlCommand(@"insert into tblEmployee values (@FirstName, @LastName, @JMBG, @DateOfBirth, @Gender, @RegNum, @PhoneNumber, @LocId, @SectorID, @ManagerID);", conn);
                    cmd.Parameters.AddWithValue("@FirstName", Employee.FirstName);
                    cmd.Parameters.AddWithValue("@LastName", Employee.LastName);
                    cmd.Parameters.AddWithValue("@JMBG", Employee.JMBG);
                    cmd.Parameters.AddWithValue("@DateOfBirth", Employee.DateOfBirth);
                    cmd.Parameters.AddWithValue("@Gender", Employee.Gender);
                    cmd.Parameters.AddWithValue("@RegNum", Employee.RegistrationNumber);
                    cmd.Parameters.AddWithValue("@PhoneNumber", Employee.PhoneNumber);
                    cmd.Parameters.AddWithValue("@LocId", Employee.Location.Id);
                    cmd.Parameters.AddWithValue("@SectorID", Employee.Sector.Id);
                    cmd.Parameters.AddWithValue("@ManagerID", 1);
                    conn.Open();
                    cmd.ExecuteNonQuery();
                    conn.Close();
                }

                MessageBoxResult messageBoxResult = System.Windows.MessageBox.Show("Employee successfully created.", "Notification");
                LogActions.LogAddEmployee(Employee);
            }
            catch (Exception)
            {
            }
        }
        /// <summary>
        /// Method enables adding employee to the database.
        /// </summary>
        public void AddEmployee()
        {
            Thread.Sleep(2000);
            using (var conn = new SqlConnection(ConnectionString))
            {
                var cmd = new SqlCommand(@"insert into tblEmployee values (@Name, @Surname, @JMBG, @DateOfBirth, @Gender, @RegNum, @PhoneNumber, @LocId, @SectorID, @ManagerID);", conn);
                cmd.Parameters.AddWithValue("@Name", Employee.FirstName);
                cmd.Parameters.AddWithValue("@Surname", Employee.LastName);
                cmd.Parameters.AddWithValue("@JMBG", Employee.JMBG);
                cmd.Parameters.AddWithValue("@DateOfBirth", Employee.DateOfBirth);
                cmd.Parameters.AddWithValue("@Gender", Employee.Gender);
                cmd.Parameters.AddWithValue("@RegNum", Employee.RegistrationNumber);
                cmd.Parameters.AddWithValue("@PhoneNumber", Employee.PhoneNumber);
                cmd.Parameters.AddWithValue("@LocId", Employee.Location.Id);
                cmd.Parameters.AddWithValue("@SectorID", Employee.Sector.Id);
                cmd.Parameters.AddWithValue("@ManagerID", Employee.Manager.Id);
                conn.Open();
                cmd.ExecuteNonQuery();
                conn.Close();
            }

            MessageBoxResult messageBoxResult = System.Windows.MessageBox.Show("Employee successfully created.", "Notification");

            LogActions.LogAddEmployee(Employee);
        }