Either set Symbology property in codebehind .cs file

BCSBarcodeCtrl1.Symbology = 6; //GS1-128

Or add a tag directly

< img src="barcodesoft.ashx?s=gs1128

GS1-128 was known as UCC/EAN-128 before.
It is a GS1 implementation of Code128 barcode.

The GS1-128 Symbology is a variant of the Code 128 Symbology.
The UCC EAN System was established by Uniform Code Council (UCC) in 1973.
In 1977, the European Article Numbering Association (EAN International) designed a compatible system for use in Europe.
The pattern of using FNC1 right after start character is reserved for GS1-128.

See Also