/// <summary>
/// Validar documento e calcular o digito
/// </summary>
/// <param name="document"></param>
/// <returns></returns>
public string CalcDigit(string document)
{
string doc = document.Trim().Replace(".", "").Replace("-", "").Replace("/", "");
string ret = string.Empty;
if (doc.Length == 11)
{
ret = new CPF().CalcDigCPF(doc);
}
else if (doc.Length == 14)
{
ret = new CNPJ().CalcDigCNPJ(doc);
}
return(ret);
}