Enum ChecksumValidation

Enum ChecksumValidation

Namespace: Aspose.BarCode.BarCodeRecognition
Assembly: Aspose.BarCode.dll (25.1.0)

在识别1D和邮政条形码时启用校验和验证。

对于必须包含校验和的符号，默认值视为是，对于仅可能存在校验和的符号，默认值视为否。

从不使用校验和：Codabar, PatchCode, Pharmacode, DataLogic2of5

可能使用校验和：Code39 Standard/Extended, Standard2of5, Interleaved2of5, ItalianPost25, Matrix2of5, MSI, ItalianPost25, DeutschePostIdentcode, DeutschePostLeitcode, VIN

始终使用校验和：其他符号

public enum ChecksumValidation

字段

Default = 0

如果规范要求校验和，则将进行验证。

Off = 2

不验证校验和。

On = 1

如果可能，始终验证校验和。

示例

此示例显示了ChecksumValidation对识别质量和结果的影响

using (BarcodeGenerator generator = new BarcodeGenerator(EncodeTypes.EAN13, "1234567890128"))
{
    generator.Save(@"c:\test.png");
}
using (BarCodeReader reader = new BarCodeReader(@"c:\test.png", DecodeType.EAN13))
{
    //校验和禁用
    reader.BarcodeSettings.ChecksumValidation = ChecksumValidation.Off;
    foreach (BarCodeResult result in reader.ReadBarCodes())
    {
        Console.WriteLine("条形码 CodeText: " + result.CodeText);
        Console.WriteLine("条形码值: " + result.Extended.OneD.Value);
        Console.WriteLine("条形码校验和: " + result.Extended.OneD.CheckSum);
    }
}
using (BarCodeReader reader = new BarCodeReader(@"c:\test.png", DecodeType.EAN13))
{
    //校验和启用
    reader.BarcodeSettings.ChecksumValidation = ChecksumValidation.On;
    foreach (BarCodeResult result in reader.ReadBarCodes())
    {
        Console.WriteLine("条形码 CodeText: " + result.CodeText);
        Console.WriteLine("条形码值: " + result.Extended.OneD.Value);
        Console.WriteLine("条形码校验和: " + result.Extended.OneD.CheckSum);
    }
}
Using generator As New BarcodeGenerator(EncodeTypes.EAN13, "1234567890128")
    generator.Save("c:\test.png")
End Using
Using reader As New BarCodeReader("c:\test.png", DecodeType.EAN13)
    '校验和禁用
    reader.BarcodeSettings.ChecksumValidation = ChecksumValidation.Off
    For Each result As BarCodeResult In reader.ReadBarCodes()
        Console.WriteLine("条形码 CodeText: " + result.CodeText)
        Console.WriteLine("条形码值: " + result.Extended.OneD.Value)
        Console.WriteLine("条形码校验和: " + result.Extended.OneD.CheckSum)
    Next
End Using
Using reader As New BarCodeReader("c:\test.png", DecodeType.EAN13)
    '校验和启用
    reader.BarcodeSettings.ChecksumValidation = ChecksumValidation.On
    For Each result As BarCodeResult In reader.ReadBarCodes()
        Console.WriteLine("条形码 CodeText: " + result.CodeText)
        Console.WriteLine("条形码值: " + result.Extended.OneD.Value)
        Console.WriteLine("条形码校验和: " + result.Extended.OneD.CheckSum)
    Next
End Using
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