public async Task <SelectedNumbersDto> UpdateSelectedNumber(SelectedNumbersDto number)
        {
            using (CellularCompanyContext db = new CellularCompanyContext())
            {
                try
                {
                    if (number != null)
                    {
                        SelectedNumbersEntity entity = number.ToModel();
                        entity.Id = number.Id;
                        db.SelectedNumbers.Attach(entity);
                        foreach (var propName in db.Entry(entity).CurrentValues.PropertyNames)
                        {
                            if (propName != "Id")
                            {
                                db.Entry(entity).Property(propName).IsModified = true;
                            }
                        }
                        await db.SaveChangesAsync();

                        return(entity.ToDto());
                    }
                    return(null);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                    return(null);
                }
            }
        }
        public async Task <SelectedNumbersDto> CreateSelectedNumber(SelectedNumbersDto number)
        {
            using (CellularCompanyContext db = new CellularCompanyContext())
            {
                try
                {
                    if (number != null)
                    {
                        SelectedNumbersEntity entity = number.ToModel();
                        db.SelectedNumbers.Add(entity);
                        await db.SaveChangesAsync();

                        return(entity.ToDto());
                    }
                    return(null);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                    return(null);
                }
            }
        }