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Comments (7)

barnhill avatar barnhill commented on August 20, 2024

I threw the following in the test app and it worked without error:

            var code = "85000923846235";
            BarcodeLib.Barcode b = new BarcodeLib.Barcode();
            b.Alignment = BarcodeLib.AlignmentPositions.CENTER;
            BarcodeLib.TYPE type = BarcodeLib.TYPE.Interleaved2of5;
            b.IncludeLabel = true;
            b.RotateFlipType = RotateFlipType.RotateNoneFlipNone;
            b.AlternateLabel = code;
            b.LabelPosition = BarcodeLib.LabelPositions.BOTTOMCENTER;
            b.BarWidth = null;
            b.AspectRatio = null;
            barcode.BackgroundImage = b.Encode(type, code, Color.Black, Color.White, 300, 150);

Can you post the contents of your CalculateCheckDigit(string) method? I think you problem may be in there.

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Sturzi79 avatar Sturzi79 commented on August 20, 2024

public static int CalculateCheckDigit(string ean)
{
var multiplier = 3;
var checkNumber = 0;
var numb = 0;

for (int i = 0; i < ean.Length; i++)
{
	if (int.TryParse(ean.Substring(i, 1), out numb))
	{
		checkNumber += numb * multiplier;
		multiplier = (multiplier == 3) ? 1 : 3;
	}
}

var checkNumberPlus9 = checkNumber + 9;
var nextMultipleOfTen = checkNumberPlus9 - (checkNumberPlus9 % 10); // nextMultipleOfTen ist jetzt das nächste Vielfache von zehn
return nextMultipleOfTen - checkNumber;

}

this is the CalculateCheckDigit method

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barnhill avatar barnhill commented on August 20, 2024

This check digit code is already in the library ... You are aware of that right?

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Sturzi79 avatar Sturzi79 commented on August 20, 2024

Do you mean the library has a built-in method to generate a check digit like the method above do it?
If so can you give me a hint where to find and to use? I can't find it by myself.

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barnhill avatar barnhill commented on August 20, 2024

Oops I mislead you. There is no Mod10 check digit for Interleaved 2 of 5 but there will be soon :)

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barnhill avatar barnhill commented on August 20, 2024

This will be fixed in Release 2.2.0 with this commit 2b9b875

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barnhill avatar barnhill commented on August 20, 2024

Let me know if you have any questions by reopening a new issue

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