i use android cell phone , and i like android ,for it can support many apps like barcodes ,barcode reader

only upc barcode is available for this ? and if if use barcode scanner to scan, which one is the best for it ?

daa1: Price?

what's the price of the barcode scanner ? i found a barcode slot reader from ka,but the price is a little bit high

wow, these are all powerful devices! and i also know a website offering barcode scanners devices, and barcode printers ,the pictures seems so good!

i've ever generated code 128 barcode in winforms,but as for you said about asp.net,you may check this guide for barcode in asp.net

QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The "QR" is derived from "Quick Response", as the creator intended the code to allow its contents to be decoded at high speed,which has become more and more welcomed! and i've used qr code in java,as well as qr code RDLL control, they are very powerful tool!

why not searching on the internet, which will show you many related resources like barcode for vb.net library SDK as well as barcode for C# control.

yeah,code 128 asp.net control Written completely in the managed Visual C#.NET, strong-named & time-stamped for security;
Compatible with major browsers like Chrome, Internet Explorer, Mozilla, Opera, etc;
Stream 1D Code 128A, Code 128B, Code 128C barcode images in ASP.NET websites/ webforms/ web service...