The current implementation of the Code128 symbology class used with RadBarcode throws an InvalidSymbolException for characters with codes greater than 127.

As you can see from this table, there are many special characters in Code128 that have larger codes:

https://en.wikipedia.org/wiki/Code_128#Bar_code_widths

It would be useful to have these in applications which need to modify a reader device's behavior with barcode control characters in order to communicate properly.

Add a property that determines if the check digit (checksum) should be displayed. Currently, you can enable a checksum calculation that is displayed in the barcode image by setting the AutoChecksum property of the symbology to True, but there is no way to display the calculated value in the text under the barcode.

Currently the Mode of the barcode can be set to determine whether alphanumeric characters or Kanji characters are allowed. We can introduce an option to allow both types of characters.