public string addProcuct(ProductAddProperty addProperty) { if (addProperty.Quantity > 0) { if (codeIsExist(addProperty.ProductCode)) { int update = aStore.update(addProperty); if (update > 0) { return("<p class='text-success'>Product Update Successfully</p>"); } else { return("<p class='text-danger'>Problem Something</p>"); } } int rowCount = aStore.addProcuct(addProperty); if (rowCount > 0) { return("<p class='text-success'>Product Add Successfully</p>"); } else { return("<p class='text-danger'>Fail to Product Add</p>"); } } return("<p class='text-warning'>Positive Number</p>"); }