I would like to know how to validate the price on Qt, as follows:
Examples accepted: 10,00 / 100,00 / 1.000,00 = true
My code, (but is validating true: 10 / 100 )
bool ok;
QLocale::setDefault(QLocale(QLocale::Portuguese, QLocale::Brazil));
QLocale brazil; // Constructs a default QLocale
brazil.toDouble(ui->price->text(), &ok);
qDebug() << ok;
If you want to precisely validate a number in the form of a price (exactly two decimal places, not in the exponential format, comma separator, point thousands separator), you should use something more precise than trying a conversion to double. Do with a regex:
QRegularExpression priceRe("^[0-9]{1,3}(\.[0-9]{3})*,[0-9]{2}$");
QString price = "1.234,53";
if (priceRe.match(price).hasMatch())
qDebug() << "matched";