Denso BHT-200QW Especificaciones descargar pdf (Pagina 132)

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101

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When CD type is I (ITF):

The

barcode data must be an even number with two or more digits. Otherwise, this function

returns "0" and throws an exception.

To check whether the CD is correct, pass a piece of barcode data with a CD to the

Scanner.GetChkDigit method as shown below. If the returned value is equal to the CD,

then the CD is correct.

[VB]

If (Scanner.GetChkDigit("123457", "I") = Asc("7")) Then

Console.WriteLine ("CD OK")

End If

[C#]

UnicodeEncoding encode = new UnicodeEncoding();

if (Scanner.GetChkDigit("123457", 'I') == (int)encode.GetBytes("7")[0]) {

Console.WriteLine ("CD OK");

}

To append a CD to barcode data, pass a piece of barcode data with a dummy character

appended to the Scanner.GetChkDigit method as shown below. The returned value will be

the CD. Replace the dummy character with the returned value.

[VB]

Dim origData As String = "12345"

Dim digit As Integer = Scanner.GetChkDigit(origData+"0", "I")

Console.WriteLine("CD = {0}", origData + New String(Chr(digit), 1))

[C#]

string origData = "12345";

int digit = Scanner.GetChkDigit(origData+"0", 'I');

byte[] digitByteArray = {(byte)digit};

ASCIIEncoding encode = new ASCIIEncoding();

Console.WriteLine("CD = {0}", origData + encode.GetString(digitByteArray, 0, 1));

Result

> CD = 123457

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