private void RegisterShipment()
        {
            Product          product          = GetSelectedProduct();
            frmEditShippment frmEditShippment = new frmEditShippment(product);

            if (frmEditShippment.ShowDialog() == DialogResult.OK)
            {
                using (var db = new StoreManagerContext())
                {
                    Product originalProduct = (from p in db.Products
                                               where p.ProductID == product.ProductID
                                               select p).Single();

                    originalProduct.Stock = product.Stock;
                    db.SaveChanges();
                }
            }
        }
        private void RegisterShipment()
        {
            Product product = GetSelectedProduct();
            frmEditShippment frmEditShippment = new frmEditShippment(product);
            if (frmEditShippment.ShowDialog() == DialogResult.OK)
            {
                using (var db = new StoreManagerContext())
                {
                    Product originalProduct = (from p in db.Products
                                               where p.ProductID == product.ProductID
                                               select p).Single();

                    originalProduct.Stock = product.Stock;
                    db.SaveChanges();
                }
            }
        }