private async void UpdateSale() { var sale = _saleManager.GetByID(SaleID); var updateSaleResult = await _saleManager.UpdateSale(new Sale() { AmountPaid = Convert.ToDouble(textBox1.Text), Change = Convert.ToDouble(Convert.ToDecimal(textBox1.Text) - Total), DateCreated = sale.DateCreated, DateTime = sale.DateTime, IsDeleted = false, StoreID = sale.StoreID, Total = Convert.ToDecimal(Total), UserCreatedID = sale.UserCreatedID, UserID = sale.UserID, DateModified = DateTime.Now, SaleID = sale.SaleID, UserModifiedID = Global.User.UserID }); if (updateSaleResult.IsSuccess) { SaleProducts = SaleProducts.Select(m => { m.SaleID = sale.SaleID; return(m); }).ToList(); //update saleproducts //bawasan quantity ng dapat bawasan //dagdagan ang dapat dagdagan updateSaleResult = await _saleManager.UpdateSaleProduct(SaleProducts, SaleID); } if (updateSaleResult.IsSuccess) { //bawasan quantity sa store await _storeManager.DecreaseProductLeft(Global.Store.StoreID, SaleProducts); Close(); TransactionDone = true; } else { //delete sale by id //delete saleproduct by saleid await _saleManager.DeleteSale(SaleID); await _saleManager.DeleteSaleProductBySaleID(SaleID); MessageBox.Show("An error occured", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }