How does barcode work?

Can someone please explain to me how barcode works? I created a grid with a field, actually in the db table as varchar, and set the data type to barcode and nothing shows up. I had to copy the info in the sample table and paste it into my table for the barcode to show up. This method makes absolutely no sense. I’m trying to use bar coding for inventory purposes. How would I scan in a barcode if it doesn’t work in a form. I’m completely lost and there are no examples on this and the documentation is poor for everything.

I haven’t used it, just played with it and all I did was similar to what you are doing. Just create a field of barcode type. However, you must apply the needed type of barcode which needs to be compatible to the data you are displaying. IE, you can’t make a alphanumeric barcode with 2over9 type as it can only contain numbers. I did use a form but no grid. Did you work in 7 or version 6?

I’ve been working with the barcodes and you can create a form with barcode field and enter the barcode i.e. A12345B. Then in a grid use the same barcode field and you will get a barcode image. Now I have to figure out how scanning barcodes work and how to auto populate tables on scan and such. For now manual entry seems to be the only way to accomplish this.

How barcode works? Having read your descripton, I think you should know more about barcode and barcode creation. There are different kinds of barcodes, like Code 39, Code 128, QR Code, etc. Barcode can be created in various platforms and so there are different kinds of barcode generators. If you want to [EDIT], then you need a VB.NET barcode generator. If you want to create barcode in Java, then you need a Java barcode generator. That depends. I think this passage called [EDIT] may give you some enlightment. By the way, make full use of Google to find what you want to know.

I’m confused… What a well-placed spam we got here.

They keep on trying :wink: Stupid to do it over such an old post.

I just noticed. Why aren’t you moderator anymore? I don’t remember revoking your privileges.

I never have been. But appearantly I am now. tnx.

maybe you can refer to the guide for barcode generator to see how does it work.

This is a good choice. Barcodes are everywhere nowadays.

There are professional reading tools for barcodes. Get a barcode reader for NET.
Maunally entry wastes time too much.

A barcode is an optical machine-readable representation of data relating to the object to which it is attached. Generally, multiple barcode types (linear and 2D) can be detected and scanned by a barcode reader. And here is a barcode scanning guide.

Check sourceforge there are several free ones with source code.
But if you just want o recognise them just buy a cheap barcode reader that connects between your keyboard. Then set it up (as given in the manual) and you are then basically done… It is super easy that way.
You can set up the barcode reader to do an automatic retrun or tab when the barcode has been read.

How does barcode work?

Let’s just talk “How does barcode work?” Sourceforge is a good resouce. Get full ideas for my past project.

For how does bar code work. I think you may know the answer just by testing it. And many tutorials and open resources for generating bar code and scanning bar code can be found on websites such as Codeproject. And since bar codes are usually been used in .net/ java with C# etc, you can also found bar code resources on .net, java, and C# forums.
Good luck. Practices are better than explanation for you.

Closed due to not constructive