Description for each types of BarCode:

Code39 :

Code 39 is an alpha-numeric encoding also known as 3 of 9 and LOGMARS.

This was the first alphanumeric symbology developed, and is one of the

most widely used encodings.

Code93 :

Code 93 is an alpha-numeric encoding that is slightly denser than code 39.

Code128 :

Code 128 is a very high density alpha-numeric bar code. It will use the

least amount of space of any current 1-D symbology for symbols with 6

characters or more.

CodeI2of5 :

Code I2of5 is a numeric encoding. The symbol can be as long as necessary

to store the encoded data.

Codabar :

Codabar may encode 16 different characters (0 through 9 plus -$:/.+),

plus an additional 4 start/stop characters (A through D). Codabar

is used by some US blood banks, photo labs, and on FedEx air bills.

PostNet :

PostNet is a numeric encoding used by the US postal service. It differs

from most others in that it is based on the height of the bars rather than

on their width.

Ean13 :

EAN-13 was implemented by the International Article Numbering Association (EAN)

in Europe. EAN-13 encodes a 12-digit code that consists of a 2 digit system code

followed by a 5 digit manufacturer code and a 5-digit product code. The 12-digit

code is followed by a checksum digit (automatically added by the control).

Ean8 :

EAN-8 provides a short barcode for small packages. It encodes a 7-digit

code that consists of a 2 or 3 digit system code followed by a 4 or 5

digit product code. The 7-digit code is followed by a checksum digit

(automatically added by the control).

UPCA

UPC-A is the common encoding you will find on virtually every consumer good on

the shelves of your local supermarket, as well as books, magazines, and newspapers.

It is similar to EAN-13, and encodes 11 digits of numeric data along with a trailing

check digit. The first digit determines the number system, followed by a 5-digit

manufacturer code, a 5-digit product code, and the check digit.

UpcE

UPC-E is a variation of UPC-A which allows for a more compact barcode by eliminating

"extra" zeros. Since the resulting UPC-E barcode is about half the size as an UPC-A

barcode, it is generally used on products with very small packaging.

When using the UpcE encoding, set the Text property to an 11-digit string as

if you were using the UpcA encoding.

Note that not all UpcA codes can be encoded in UpcE.

If the manufacturer code ends with "000", "100", or "200", the product number must be <= 900.

If the manufacturer code ends with "00" but not with "100", "200", or "300", then the product number must be <= 90.

If the manufacturer code ends with "0" but not with "00", then the product number must be <= 9.

If the manufacturer code does not end with "0", then the product number must be between 5 and 9.