public void UpdateLastInvoiceNumber(LastInvoiceNumber lastNumber)
        {
            var oldLastNumber = _ctx.LastInvoiceNumbers.Find(lastNumber.Id);

            _ctx.Entry(oldLastNumber).CurrentValues.SetValues(lastNumber);

            _ctx.SaveChanges();
        }
 public void DeleteLastInvoiceNumber(LastInvoiceNumber lastInvoiceNumber)
 {
     _ctx.LastInvoiceNumbers.Remove(lastInvoiceNumber);
     _ctx.SaveChanges();
 }
        public void SaveLastInvoiceNumber(LastInvoiceNumber newLastNumber)
        {
            _ctx.LastInvoiceNumbers.Add(newLastNumber);

            _ctx.SaveChanges();
        }