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How do I use the check digit for Code128 so i can see something like this
(00) 0 06397C9 000000019 8 on top of the bar code?


You can use CodeLocation property to specify the location of the codetext. Please refer to for details. You can set CodeLocation to below as follows:

BarCodeBuilder bc=new BarCodeBuilder();

An alternate solution would be to set the CodeLocation to none and use CaptionAbove property. You can display formatted CodeText using caption. For details, please refer to