public override string GetRandomDriversLicense()
{
var dlVal = base.GetRandomDriversLicense();
var chkDigit = NfString.CalcLuhnCheckDigit(dlVal);
var dlOut = new StringBuilder();
dlOut.Append(dlVal);
dlOut.Append(chkDigit.ToString());
return(dlOut.ToString());
}
public override bool ValidDriversLicense(string dlnumber)
{
if (string.IsNullOrWhiteSpace(dlnumber))
{
return(false);
}
//all but last digit
var dlVal = dlnumber.Substring(0, dlnumber.Length - 1);
var dlLastChar = dlnumber.Substring(dlnumber.Length - 1, 1);
var dlChkDigit = 0;
if (!int.TryParse(dlLastChar, out dlChkDigit))
{
return(false);
}
var calcChkDigit = NfString.CalcLuhnCheckDigit(dlVal);
return(base.ValidDriversLicense(dlVal) && dlChkDigit == calcChkDigit);
}