public static bool IsValidEan(string Value, BarcodeEanType EanType, out string ErrMsgIs)
{
ErrMsgIs = "";
int FixedLength = 0;
if (EanType == BarcodeEanType.Ean8)
{
FixedLength = 8;
}
else if (EanType == BarcodeEanType.Ean13)
{
FixedLength = 13;
}
else
{
ErrMsgIs = string.Format("잘못된 EanType:{0}입니다.", EanType);
return(false);
}
if (Value.Length != FixedLength)
{
ErrMsgIs = string.Format("길이는 {0}자리만 허용됩니다.", FixedLength);
return(false);
}
string ValueWithoutCheck = Value.Substring(0, FixedLength - 1);
string CheckDigitRight = CValid.GetBarcodeCheckDigit(ValueWithoutCheck, out ErrMsgIs);
if (string.IsNullOrEmpty(CheckDigitRight))
{
return(false);
}
string CheckDigit = Value.Substring(FixedLength - 1, 1);
if (CheckDigitRight != CheckDigit)
{
ErrMsgIs = string.Format("잘못된 검증번호:{0}", CheckDigit);
return(false);
}
return(true);
}
//http://www.codeproject.com/Articles/10162/Creating-EAN-13-Barcodes-with-C
/// <summary>
/// EAN-8, EAN-13 형식으로 변환함.
/// ean13.ttf 글꼴 필요
/// </summary>
/// <param name="Value"></param>
/// <param name="EanType"></param>
/// <returns></returns>
public static string ToEan(string Value, BarcodeEanType EanType)
{
string ErrMsgIs;
if (!IsValidEan(Value, EanType, out ErrMsgIs))
{
throw new Exception(ErrMsgIs);
}
string NewValue = "";
if (EanType == BarcodeEanType.Ean8)
{
NewValue = ":";
for (int i = 1; i <= 4; i++)
{
NewValue = NewValue + Convert.ToChar(65 + Convert.ToInt32(Value.Substring(i - 1, 1)));
}
NewValue = NewValue + "*";
for (int i = 5; i <= 8; i++)
{
NewValue = NewValue + Convert.ToChar(97 + Convert.ToInt32(Value.Substring(i - 1, 1)));
}
NewValue = NewValue + "+";
}
else if (EanType == BarcodeEanType.Ean13)
{
NewValue = Value.Substring(0, 1) + Convert.ToChar(65 + Convert.ToInt32((Value.Substring(1, 1))));
int First = Convert.ToInt32(Value.Substring(0, 1));
bool IsTableA;
for (int i = 3; i <= 7; i++)
{
IsTableA = false;
switch (i)
{
case 3:
switch (First)
{
case 0:
case 1:
case 2:
case 3:
IsTableA = true;
break;
}
break;
case 4:
switch (First)
{
case 0:
case 4:
case 7:
case 8:
IsTableA = true;
break;
}
break;
case 5:
switch (First)
{
case 0:
case 1:
case 4:
case 5:
case 9:
IsTableA = true;
break;
}
break;
case 6:
switch (First)
{
case 0:
case 2:
case 5:
case 6:
case 7:
IsTableA = true;
break;
}
break;
case 7:
switch (First)
{
case 0:
case 3:
case 6:
case 8:
case 9:
IsTableA = true;
break;
}
break;
}
if (IsTableA)
{
NewValue = NewValue + Convert.ToChar(65 + Convert.ToInt32(Value.Substring(i - 1, 1)));
}
else
{
NewValue = NewValue + Convert.ToChar(75 + Convert.ToInt32(Value.Substring(i - 1, 1)));
}
}
NewValue = NewValue + "*";
for (int i = 8; i <= 13; i++)
{
NewValue = NewValue + Convert.ToChar(97 + Convert.ToInt32(Value.Substring(i - 1, 1)));
}
NewValue = NewValue + "+";
}
return(NewValue);
}
