public static decimal CalculateControlDigit(string numberStr, SaderatBillControlDigitModeEnum mode, out Exception exData)
{
exData = null;
try
{
if (String.IsNullOrWhiteSpace(numberStr) ||
String.IsNullOrEmpty(numberStr))
{
throw new Exception("عددی برای کنترل یافت نشد!");
}
decimal sum = 0;
var counterMultiple = 2;
var currentStr = numberStr;
while (!String.IsNullOrEmpty(currentStr))
{
var digit = 0;
int.TryParse(currentStr.Substring(currentStr.Length - 1, 1), out digit);
sum += (digit * counterMultiple);
counterMultiple++;
if (counterMultiple >= 8)
{
counterMultiple = 2;
}
currentStr = currentStr.Substring(0, currentStr.Length - 1);
}
var finalMode = sum % 11;
if ((mode == SaderatBillControlDigitModeEnum.BillController02 ||
mode == SaderatBillControlDigitModeEnum.PaymentController02) &&
(finalMode == 1 || finalMode == 0))
{
finalMode = 0;
}
else if ((mode == SaderatBillControlDigitModeEnum.BillController01 ||
mode == SaderatBillControlDigitModeEnum.PaymentController01) &&
(finalMode == 1 || finalMode == 0))
{
finalMode = 9;
}
else
{
finalMode = 11 - finalMode;
}
return(finalMode);
}
catch (Exception ex)
{
exData = ex;
return(-1);
}
}
public static decimal CalculateControlDigit(decimal number, SaderatBillControlDigitModeEnum mode, out Exception exData)
{
return(CalculateControlDigit(number.ToString(), mode, out exData));
}
