private void btnAdd_Click(object sender, EventArgs e) { string partNumber = txtPartNumber.Text; int qunatity = txtQuantity.Text != ""?Convert.ToInt32(txtQuantity.Text):0; string palletNumber = txtPalletNumber.Text; var item = new InventoryItem() { PartNumber = partNumber, CurrentStock = qunatity, PalletNo = palletNumber }; if (ValidateNullValues(item, InventoryTransactionType.Add)) { if (ValidateTransactionAction(txtPalletNumber.Text, InventoryTransactionType.Add)) { bool valid = InventoryRepository.AddPartNumber(item); if (valid) { ShowMessage("Add quantity " + item.CurrentStock + " to PartNumber " + item.PartNumber, MessageBoxIcon.Information); } else { ShowMessage("Error while adding quantity partnumber", MessageBoxIcon.Information); } } } }