Denso BHT-202Q Manual do Utilizador descarregar pdf (Página 138)

100

101

￭ Note

If the

barcode data within the code (excluding the check digit positions) contains any

characters outside the character set corresponding to the barcode type specified by the

check digit type, this function throws an exception. However, if only the check digit

positions contain a character outside the valid character set, then

this function

calculates the correct check digit and returns it as a single-character string.

[VB] Scanner.GetChkDigit("494AB4458", "A")

[C#] Scanner.GetChkDigit("494AB4458", "A")

Since "A" and "B" lie outside the valid character set for EAN (JAN) or UPC, an exception

is thrown.

[VB] Scanner.GetChkDigit("4940045X", "A")

[C#] Scanner.GetChkDigit("4940045X", "A");

"X" lies outside the valid character set but is in the CD position, and therefore the

correct CD (ASCII "8") is calculated and returned.

[VB] Scanner.GetChkDigit("a0ef3-a", "N")

[C#] Scanner.GetChkDigit("a0ef3-a", "N");

Since "e" and "f" lie outside the valid character set for Codabar (NW-7), an exception is

thrown.

[VB] Scanner.GetChkDigit("a123Qa", "N")

[C#] Scanner.GetChkDigit("a123Qa", "N");

"Q" lies outside the valid character set but is in the CD position, and therefore the

correct CD (ASCII "-") is calculated and returned.

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