/// <summary>
/// Get the individual's acount number.
/// </summary>
/// <param name="format">How many characters are used for the Issuer, either 8 (Long) or 6 (Short)</param>
/// <returns>The part of the credit card denoting the individual account number</returns>
/// <exception cref="ArgumentOutOfRangeException">Invalid enum value argument (0)</exception>
public string GetIndividualAccountNumber(CreditCardIssuerFormat format)
{
if (format == 0)
{
throw new ArgumentOutOfRangeException(nameof(format));
}
if (string.IsNullOrEmpty(_value))
{
return(_value);
}
return(_value.Substring((int)format, _value.Length - (int)format - 1));
}
/// <summary>
/// Get the issuer based on the given format.
/// </summary>
/// <param name="format">Either Long (8) or Short (6)</param>
/// <returns>The part of the credit card denoting the issuer</returns>
/// <exception cref="ArgumentOutOfRangeException">Invalid enum value argument (0)</exception>
public string GetIssuerIdentificationNumber(CreditCardIssuerFormat format)
{
if (format == 0)
{
throw new ArgumentOutOfRangeException(nameof(format));
}
if (string.IsNullOrEmpty(_value))
{
return(_value);
}
return(_value.Substring(0, (int)format));
}
