Set QLineEdit to accept only numbers

Question

I have a QLineEdit where the user should input only numbers.

So is there a numbers-only setting for QLineEdit?

Answer 1

QLineEdit::setValidator(), for example:

myLineEdit->setValidator( new QIntValidator(0, 100, this) );

or

myLineEdit->setValidator( new QDoubleValidator(0, 100, 2, this) );

See: QIntValidator, QDoubleValidator, QLineEdit::setValidator