POS
in [Visual Basic]
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From: JP Bless on 14 Feb 2005 09:03 And I forgot to menthion calculating and keeping track of the ever-present sales (taxes). That is if they do charge sales taxes in your State. "JP Bless" <jp3bless_NoSpam(a)hotmail.com> wrote in message news:OrZEfipEFHA.548(a)TK2MSFTNGP14.phx.gbl... > Mike is very right. POS systems is probably one of the most taxing > applications you would ever build. Think of the many scenarios a good POS > system must deal with. Depending on the type... You would have to consider > > Sales > -Barcode scanning method (and devices) > -Return (Of course customers do return items when not satisfied) > -Layaway > -Weighing products... type of Scale > -Customer Display > -Discounting > -Tender methods > Think of other modules like Inventory, Accounting, Orders etc... > > No one is trying to discourage you but designing a POS is not a walk in the > park. There are way too many things to design and program. Unless, of course > you just want a "no-frills" in-house system that just rings in sales. If you > like, you can visit www.planetsourcecode.com and search for POS or inventory > system. There are good souls out there who are willing to share some of > their hard work. By the way, printing and opening cash drawers with VB is > very easy... see sample code below > > This will open cash drawer attached to "COM1:" > Open "COM1:" For Output As #1 > 'This codes opens most cash drawers > 'Epson Standard > Print #1, Chr(27) & Chr(112) & Chr(0) > Close #1 > DoEvents > Exit Sub > > Print to Epson attached to Com1: (Code untested) > > This will open cash drawer attached to "COM1:" > Dim i as integer > Open "COM1:" For Output As #1 > 'Epson Standard > For I = 1 to 10 > Print #1, "Computer P4 $1500.99" > Next i > Close #1 > DoEvents > Exit Sub > And then there is the nagging part about formating the receipt > > > "MikeD" <nobody(a)nowhere.edu> wrote in message > news:uKzRePjEFHA.1932(a)TK2MSFTNGP14.phx.gbl... > > > > "dave" <forged(a)foo.netREMOVE> wrote in message > > news:%2349IrkiEFHA.228(a)tk2msftngp13.phx.gbl... > > > Hi > > > I m thinking to build application point of sale system using VB. > > > I have never done before so I'm very much new and couldnt understand > where > > > should i start from. > > > Can anyone guide me? > > > Can any one suggest how to print to epson tm88iii printer using vb > > > code...becoz we are going to use that printer... > > > > > > No offense, but this doesn't sound like something you should be taking on > > right now. You're essentially trying to run before you've even learned > how > > to walk (or possibly even crawl). > > > > As to your first question, sorry, but nobody here can really guide you on > > how to write a POS app. If you take this on, we can provide help and > > suggestions to specific problems you encounter, but that's really about > it. > > For starters, you'll need to decide on exactly what features and > > functionality you want/need the POS to provide. Then, you'll need to > create > > and design a database schema. Next, you might create the UI. Finally, > you'll > > write code to make everything work. > > > > As to your second question, you should be able to use VB's Printer object. > > You just need to install the right printer driver. > > > > -- > > Mike > > Microsoft MVP Visual Basic > > > > > >
From: Ralph on 14 Feb 2005 09:11 "JP Bless" <jp3bless_NoSpam(a)hotmail.com> wrote in message news:%23D8aO1pEFHA.392(a)TK2MSFTNGP14.phx.gbl... > And I forgot to menthion calculating and keeping track of the ever-present > sales (taxes). That is if they do charge sales taxes in your State. > > Lets us not leave out credit card validation and approval, which customers take for granted should be seemless and instantaneous. <g> -ralph
From: JP Bless on 14 Feb 2005 12:13 Huge pain in the %$*$ "Ralph" <msnews.20.nt_consulting32(a)spamgourmet.com> wrote in message news:u$yaB7pEFHA.3032(a)TK2MSFTNGP12.phx.gbl... > > "JP Bless" <jp3bless_NoSpam(a)hotmail.com> wrote in message > news:%23D8aO1pEFHA.392(a)TK2MSFTNGP14.phx.gbl... > > And I forgot to menthion calculating and keeping track of the ever-present > > sales (taxes). That is if they do charge sales taxes in your State. > > > > > > Lets us not leave out credit card validation and approval, which customers > take for granted should be seemless and instantaneous. <g> > > -ralph > >
From: SergeK on 17 Feb 2005 12:00 dave wrote: > Hi > I m thinking to build application point of sale system using VB. > I have never done before so I'm very much new and couldnt understand where > should i start from. > Can anyone guide me? > Can any one suggest how to print to epson tm88iii printer using vb > code...becoz we are going to use that printer... > Thanx in advance > dave First fo all you should create a database with Products table. You can use MS Access. Add to the table next fields: ProductKey,ProductCode,Description,Price. Create in the VB the Form for edit Product records using ADO connection. Then create Invoice(or Sales Receipt) table and IvoiceDetail table. The Invoice table has next fields InvoiceNumber,Date,Customer, PaymentTerms, SubTotal,Tax,Shipping and Total. The Invoice Detail has fields InvoiceNumber,ProductKey,Quantity,Price,Extension. Now you can create form for edit Invoice and Invoice Detail using text boxes for Invoice and datagrid for edit Invoice Detail records.If you'll be able to do these forms you can create your first POS in certain time. Serge www.executivpro.com Golden and Silver Inventory systems.
From: Dale on 21 Feb 2005 18:35 Serge, that sounds like just barely the tip of the iceberg in just the backoffice part, there's the frontend for the cashiers too. As some of the people mentioned above, it's is not an easy thing to write a POS system. I have only done things on the periphery within an existing system and just to show how hard it is ... I always have tons of work to customer stuff for customers either because a feature is missing or it doesn't work properly or not at all. My work is in the backoffice end though mostly. > dave wrote: > >>Hi >>I m thinking to build application point of sale system using VB. >>I have never done before so I'm very much new and couldnt understand > > where > >>should i start from. >>Can anyone guide me? >>Can any one suggest how to print to epson tm88iii printer using vb >>code...becoz we are going to use that printer... >>Thanx in advance >>dave > > > First fo all you should create a database with Products table. You can > use MS Access. Add to the table next fields: > ProductKey,ProductCode,Description,Price. Create in the VB the Form for > edit Product records using ADO connection. Then create Invoice(or > Sales Receipt) table and IvoiceDetail table. The Invoice table has next > fields InvoiceNumber,Date,Customer, PaymentTerms, SubTotal,Tax,Shipping > and Total. The Invoice Detail has fields > InvoiceNumber,ProductKey,Quantity,Price,Extension. Now you can create > form for edit Invoice and Invoice Detail using text boxes for Invoice > and datagrid for edit Invoice Detail records.If you'll be able to do > these forms you can create your first POS in certain time. > > Serge > www.executivpro.com Golden and Silver Inventory systems. >
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