Hi Everyone

I was wondering if someone could help with a puzzle I have

I am thinking about adding a "Clean Receipt" option on my software for when Items are voided during the sale

This is what I have at the moment


What I would need to do is remove the Item(s) that was originally placed on the receipt as well as the Voided one

in the above example I would need to remove


so when the receipt is printed it would show like


How would I do this? I know i would need to loop though the receipt file but I am not sure how I would remove the lines i need

And yes the voided format will always show the |L|1** NEXT ITEM HAS BEEN VOIDED **~ before the item that is voided.

the following is what could be shown

Is the list of products in an array? If so, you can just delete the correct item with Array.Remove()

cogier said

Is the list of products in an array? If so, you can just delete the correct item with Array.Remove()

At the moment the receipt data file is created each time an item is scanned.

The file is called recipit.tmp

The system is using the ~ when it reads the file in for printing as a end of line marker

I'm not sure if this is the best way to make the receipt file as the item is still showing on the main screen as being scanned and the. Voided.

I'm always open to way to improve the system.

Can you post the program so we can see how you are doing things.

 I can not post the whole program as it's closed source but I can post the code that adds data to the receipt file if that helps.

..I can post the code that adds data to the receipt file if that helps.

Yes that would help.

Basically what happens the System would call FormatRecipitEntery_Single with the product name and value etc in it

FormatRecipitEntery_Single("VALUE ORANGE JUICE","£0.35","A")


then once the spacing etc has been calculated the system then called CreateRecipitFile



The Void is the same sort of process but it would call FormatRecipitEntery_TwoLines

FormatRecipitEntery_Single("**NEXT ITEM IS VOIDED**|VALUE ORANGE JUICE","-£0.35","A")



If you have a smarter way of doing this then I am more then happy to update the receipt function to work with the new format

Well, that looks quite complicated.

I have looked at till receipts and if there is a credit it is clearly shown and, I think, a record should be kept. Below is a simplified piece of code showing the way I would go about this. Sorry but I have run out of time today to improve it.

 I have written a Point of Sale in gambas that is used all the time. They get very complex especially when doing receipts and figuring out pricing. I am lost as to how you are doing things on this but always happy to talk private about how we can do things.
The way I handled this was since the sale is on the screen in a columnview when it is time to print the receipt I just iterate through the columnview and print. All items in the columnview are stored in a mysql database for easy retrieval including remotely. I am assuming that your sale is on the screen when you want to print. My receipt print is relatively simple this way. I may not be giving code but the concept of how to do it may be more simple allowing you to code it easier. My thought is put the original item on the sale, then the voided item would simply have a negative quantity. You can even include a "notation" item with it. Then printing a receipt would be as simple as just step through the list on screen.

cogier has helped me on a few options with my POS so this is the guy you want to listen to. He solves problems I can't.